Ca9Y3(CoO6)4 crystallizes in the triclinic P1 space group. There are nine inequivalent Ca sites. In the first Ca site, Ca(1) is bonded in a 8-coordinate geometry to one O(12), one O(16), one O(18), one O(2), one O(20), one O(22), one O(4), and one O(8) atom. In the second Ca site, Ca(2) is bonded in a 8-coordinate geometry to one O(10), one O(13), one O(17), one O(21), one O(24), one O(3), one O(6), and one O(7) atom. In the third Ca site, Ca(3) is bonded in a 8-coordinate geometry to one O(14), one O(18), one O(22), one O(23), one O(4), one O(5), one O(8), and one O(9) atom. In the fourth Ca site, Ca(4) is bonded in a 8-coordinate geometry to one O(13), one O(15), one O(19), one O(23), one O(3), one O(5), one O(7), and one O(9) atom. In the fifth Ca site, Ca(5) is bonded in a 8-coordinate geometry to one O(10), one O(14), one O(16), one O(20), one O(24), one O(4), one O(6), and one O(8) atom. In the sixth Ca site, Ca(6) is bonded in a 8-coordinate geometry to one O(1), one O(12), one O(15), one O(18), one O(19), one O(22), one O(5), and one O(9) atom. In the seventh Ca site, Ca(7) is bonded in a 8-coordinate geometry to one O(10), one O(11), one O(16), one O(17), one O(2), one O(20), one O(21), and one O(6) atom. In the eighth Ca site, Ca(8) is bonded in a 8-coordinate geometry to one O(1), one O(11), one O(13), one O(17), one O(21), one O(24), one O(3), and one O(7) atom. In the ninth Ca site, Ca(9) is bonded in a 8-coordinate geometry to one O(12), one O(14), one O(18), one O(2), one O(22), one O(23), one O(4), and one O(8) atom. There are three inequivalent Y sites. In the first Y site, Y(1) is bonded in a 8-coordinate geometry to one O(1), one O(12), one O(13), one O(15), one O(19), one O(23), one O(5), and one O(9) atom. In the second Y site, Y(2) is bonded in a 8-coordinate geometry to one O(10), one O(11), one O(14), one O(16), one O(2), one O(20), one O(24), and one O(6) atom. In the third Y site, Y(3) is bonded in a 8-coordinate geometry to one O(1), one O(11), one O(15), one O(17), one O(19), one O(21), one O(3), and one O(7) atom. There are four inequivalent Co sites. In the first Co site, Co(1) is bonded in an octahedral geometry to one O(1), one O(13), one O(15), one O(17), one O(3), and one O(5) atom. In the second Co site, Co(2) is bonded in an octahedral geometry to one O(14), one O(16), one O(18), one O(2), one O(4), and one O(6) atom. In the third Co site, Co(3) is bonded in an octahedral geometry to one O(12), one O(19), one O(22), one O(23), one O(8), and one O(9) atom. In the fourth Co site, Co(4) is bonded in an octahedral geometry to one O(10), one O(11), one O(20), one O(21), one O(24), and one O(7) atom. There are twenty-four inequivalent O sites. In the first O site, O(1) is bonded to one Ca(6), one Ca(8), one Y(1), one Y(3), and one Co(1) atom to form distorted OCa2Y2Co square pyramids that share  a cornercorner with one O(15)Ca2Y2Co square pyramid,  a cornercorner with one O(13)Ca3YCo square pyramid,  a cornercorner with one O(23)Ca3YCo square pyramid,  a cornercorner with one O(24)Ca3YCo square pyramid,  a cornercorner with one O(3)Ca3YCo square pyramid,  a cornercorner with one O(18)Ca4Co square pyramid,  a cornercorner with one O(22)Ca4Co square pyramid, corners with two equivalent O(21)Ca3YCo square pyramids, corners with two equivalent O(7)Ca3YCo square pyramids, corners with two equivalent O(9)Ca3YCo square pyramids,  an edgeedge with one O(11)Ca2Y2Co square pyramid,  an edgeedge with one O(12)Ca3YCo square pyramid,  an edgeedge with one O(13)Ca3YCo square pyramid,  an edgeedge with one O(3)Ca3YCo square pyramid,  a faceface with one O(15)Ca2Y2Co square pyramid,  a faceface with one O(19)Ca2Y2Co square pyramid, and  a faceface with one O(17)Ca3YCo square pyramid. In the second O site, O(2) is bonded to one Ca(1), one Ca(7), one Ca(9), one Y(2), and one Co(2) atom to form distorted OCa3YCo square pyramids that share  a cornercorner with one O(14)Ca3YCo square pyramid,  a cornercorner with one O(16)Ca3YCo square pyramid,  a cornercorner with one O(17)Ca3YCo square pyramid,  a cornercorner with one O(21)Ca3YCo square pyramid,  a cornercorner with one O(23)Ca3YCo square pyramid,  a cornercorner with one O(24)Ca3YCo square pyramid,  a cornercorner with one O(6)Ca3YCo square pyramid,  a cornercorner with one O(4)Ca4Co square pyramid, corners with two equivalent O(10)Ca3YCo square pyramids, corners with two equivalent O(22)Ca4Co square pyramids, corners with two equivalent O(8)Ca4Co square pyramids,  an edgeedge with one O(11)Ca2Y2Co square pyramid,  an edgeedge with one O(12)Ca3YCo square pyramid,  an edgeedge with one O(14)Ca3YCo square pyramid,  an edgeedge with one O(6)Ca3YCo square pyramid,  an edgeedge with one O(4)Ca4Co square pyramid,  a faceface with one O(16)Ca3YCo square pyramid,  a faceface with one O(20)Ca3YCo square pyramid, and  a faceface with one O(18)Ca4Co square pyramid. In the third O site, O(3) is bonded to one Ca(2), one Ca(4), one Ca(8), one Y(3), and one Co(1) atom to form distorted OCa3YCo square pyramids that share  a cornercorner with one O(1)Ca2Y2Co square pyramid,  a cornercorner with one O(15)Ca2Y2Co square pyramid,  a cornercorner with one O(10)Ca3YCo square pyramid,  a cornercorner with one O(13)Ca3YCo square pyramid,  a cornercorner with one O(17)Ca3YCo square pyramid,  a cornercorner with one O(23)Ca3YCo square pyramid,  a cornercorner with one O(6)Ca3YCo square pyramid,  a cornercorner with one O(9)Ca3YCo square pyramid, corners with two equivalent O(11)Ca2Y2Co square pyramids, corners with two equivalent O(19)Ca2Y2Co square pyramids, corners with two equivalent O(24)Ca3YCo square pyramids,  an edgeedge with one O(1)Ca2Y2Co square pyramid,  an edgeedge with one O(15)Ca2Y2Co square pyramid, edges with two equivalent O(7)Ca3YCo square pyramids,  a faceface with one O(13)Ca3YCo square pyramid,  a faceface with one O(17)Ca3YCo square pyramid, and  a faceface with one O(21)Ca3YCo square pyramid. In the fourth O site, O(4) is bonded to one Ca(1), one Ca(3), one Ca(5), one Ca(9), and one Co(2) atom to form distorted OCa4Co square pyramids that share  a cornercorner with one O(10)Ca3YCo square pyramid,  a cornercorner with one O(14)Ca3YCo square pyramid,  a cornercorner with one O(16)Ca3YCo square pyramid,  a cornercorner with one O(2)Ca3YCo square pyramid,  a cornercorner with one O(24)Ca3YCo square pyramid,  a cornercorner with one O(9)Ca3YCo square pyramid,  a cornercorner with one O(18)Ca4Co square pyramid, corners with two equivalent O(12)Ca3YCo square pyramids, corners with two equivalent O(20)Ca3YCo square pyramids, corners with two equivalent O(23)Ca3YCo square pyramids,  an edgeedge with one O(16)Ca3YCo square pyramid,  an edgeedge with one O(2)Ca3YCo square pyramid,  an edgeedge with one O(6)Ca3YCo square pyramid, edges with two equivalent O(8)Ca4Co square pyramids,  a faceface with one O(14)Ca3YCo square pyramid,  a faceface with one O(18)Ca4Co square pyramid, and  a faceface with one O(22)Ca4Co square pyramid. In the fifth O site, O(5) is bonded in a 5-coordinate geometry to one Ca(3), one Ca(4), one Ca(6), one Y(1), and one Co(1) atom. In the sixth O site, O(6) is bonded to one Ca(2), one Ca(5), one Ca(7), one Y(2), and one Co(2) atom to form distorted OCa3YCo square pyramids that share  a cornercorner with one O(13)Ca3YCo square pyramid,  a cornercorner with one O(16)Ca3YCo square pyramid,  a cornercorner with one O(2)Ca3YCo square pyramid,  a cornercorner with one O(3)Ca3YCo square pyramid,  a cornercorner with one O(7)Ca3YCo square pyramid,  a cornercorner with one O(18)Ca4Co square pyramid,  a cornercorner with one O(8)Ca4Co square pyramid, corners with two equivalent O(11)Ca2Y2Co square pyramids, corners with two equivalent O(21)Ca3YCo square pyramids, corners with three equivalent O(20)Ca3YCo square pyramids,  an edgeedge with one O(17)Ca3YCo square pyramid,  an edgeedge with one O(2)Ca3YCo square pyramid,  an edgeedge with one O(4)Ca4Co square pyramid, edges with two equivalent O(10)Ca3YCo square pyramids,  a faceface with one O(14)Ca3YCo square pyramid,  a faceface with one O(16)Ca3YCo square pyramid, and  a faceface with one O(24)Ca3YCo square pyramid. In the seventh O site, O(7) is bonded to one Ca(2), one Ca(4), one Ca(8), one Y(3), and one Co(4) atom to form distorted OCa3YCo square pyramids that share  a cornercorner with one O(11)Ca2Y2Co square pyramid,  a cornercorner with one O(20)Ca3YCo square pyramid,  a cornercorner with one O(21)Ca3YCo square pyramid,  a cornercorner with one O(23)Ca3YCo square pyramid,  a cornercorner with one O(6)Ca3YCo square pyramid,  a cornercorner with one O(9)Ca3YCo square pyramid, corners with two equivalent O(1)Ca2Y2Co square pyramids, corners with two equivalent O(15)Ca2Y2Co square pyramids, corners with three equivalent O(17)Ca3YCo square pyramids,  an edgeedge with one O(11)Ca2Y2Co square pyramid,  an edgeedge with one O(19)Ca2Y2Co square pyramid,  an edgeedge with one O(10)Ca3YCo square pyramid, edges with two equivalent O(3)Ca3YCo square pyramids,  a faceface with one O(13)Ca3YCo square pyramid,  a faceface with one O(21)Ca3YCo square pyramid, and  a faceface with one O(24)Ca3YCo square pyramid. In the eighth O site, O(8) is bonded to one Ca(1), one Ca(3), one Ca(5), one Ca(9), and one Co(3) atom to form distorted OCa4Co square pyramids that share  a cornercorner with one O(19)Ca2Y2Co square pyramid,  a cornercorner with one O(10)Ca3YCo square pyramid,  a cornercorner with one O(12)Ca3YCo square pyramid,  a cornercorner with one O(24)Ca3YCo square pyramid,  a cornercorner with one O(6)Ca3YCo square pyramid,  a cornercorner with one O(22)Ca4Co square pyramid, corners with two equivalent O(16)Ca3YCo square pyramids, corners with two equivalent O(2)Ca3YCo square pyramids, corners with three equivalent O(18)Ca4Co square pyramids,  an edgeedge with one O(12)Ca3YCo square pyramid,  an edgeedge with one O(20)Ca3YCo square pyramid,  an edgeedge with one O(9)Ca3YCo square pyramid, edges with two equivalent O(4)Ca4Co square pyramids,  a faceface with one O(14)Ca3YCo square pyramid,  a faceface with one O(23)Ca3YCo square pyramid, and  a faceface with one O(22)Ca4Co square pyramid. In the ninth O site, O(9) is bonded to one Ca(3), one Ca(4), one Ca(6), one Y(1), and one Co(3) atom to form distorted OCa3YCo square pyramids that share  a cornercorner with one O(19)Ca2Y2Co square pyramid,  a cornercorner with one O(12)Ca3YCo square pyramid,  a cornercorner with one O(14)Ca3YCo square pyramid,  a cornercorner with one O(23)Ca3YCo square pyramid,  a cornercorner with one O(3)Ca3YCo square pyramid,  a cornercorner with one O(7)Ca3YCo square pyramid,  a cornercorner with one O(22)Ca4Co square pyramid,  a cornercorner with one O(4)Ca4Co square pyramid, corners with two equivalent O(1)Ca2Y2Co square pyramids, corners with two equivalent O(13)Ca3YCo square pyramids, corners with two equivalent O(18)Ca4Co square pyramids,  an edgeedge with one O(12)Ca3YCo square pyramid,  an edgeedge with one O(22)Ca4Co square pyramid,  an edgeedge with one O(8)Ca4Co square pyramid,  a faceface with one O(15)Ca2Y2Co square pyramid,  a faceface with one O(19)Ca2Y2Co square pyramid, and  a faceface with one O(23)Ca3YCo square pyramid. In the tenth O site, O(10) is bonded to one Ca(2), one Ca(5), one Ca(7), one Y(2), and one Co(4) atom to form distorted OCa3YCo square pyramids that share  a cornercorner with one O(11)Ca2Y2Co square pyramid,  a cornercorner with one O(13)Ca3YCo square pyramid,  a cornercorner with one O(20)Ca3YCo square pyramid,  a cornercorner with one O(21)Ca3YCo square pyramid,  a cornercorner with one O(24)Ca3YCo square pyramid,  a cornercorner with one O(3)Ca3YCo square pyramid,  a cornercorner with one O(4)Ca4Co square pyramid,  a cornercorner with one O(8)Ca4Co square pyramid, corners with two equivalent O(14)Ca3YCo square pyramids, corners with two equivalent O(17)Ca3YCo square pyramids, corners with two equivalent O(2)Ca3YCo square pyramids,  an edgeedge with one O(11)Ca2Y2Co square pyramid,  an edgeedge with one O(21)Ca3YCo square pyramid,  an edgeedge with one O(7)Ca3YCo square pyramid, edges with two equivalent O(6)Ca3YCo square pyramids,  a faceface with one O(16)Ca3YCo square pyramid,  a faceface with one O(20)Ca3YCo square pyramid, and  a faceface with one O(24)Ca3YCo square pyramid. In the eleventh O site, O(11) is bonded to one Ca(7), one Ca(8), one Y(2), one Y(3), and one Co(4) atom to form distorted OCa2Y2Co square pyramids that share  a cornercorner with one O(15)Ca2Y2Co square pyramid,  a cornercorner with one O(19)Ca2Y2Co square pyramid,  a cornercorner with one O(10)Ca3YCo square pyramid,  a cornercorner with one O(13)Ca3YCo square pyramid,  a cornercorner with one O(14)Ca3YCo square pyramid,  a cornercorner with one O(21)Ca3YCo square pyramid,  a cornercorner with one O(24)Ca3YCo square pyramid,  a cornercorner with one O(7)Ca3YCo square pyramid, corners with two equivalent O(16)Ca3YCo square pyramids, corners with two equivalent O(3)Ca3YCo square pyramids, corners with two equivalent O(6)Ca3YCo square pyramids,  an edgeedge with one O(1)Ca2Y2Co square pyramid,  an edgeedge with one O(10)Ca3YCo square pyramid,  an edgeedge with one O(2)Ca3YCo square pyramid,  an edgeedge with one O(24)Ca3YCo square pyramid,  an edgeedge with one O(7)Ca3YCo square pyramid,  a faceface with one O(17)Ca3YCo square pyramid,  a faceface with one O(20)Ca3YCo square pyramid, and  a faceface with one O(21)Ca3YCo square pyramid. In the twelfth O site, O(12) is bonded to one Ca(1), one Ca(6), one Ca(9), one Y(1), and one Co(3) atom to form distorted OCa3YCo square pyramids that share  a cornercorner with one O(13)Ca3YCo square pyramid,  a cornercorner with one O(14)Ca3YCo square pyramid,  a cornercorner with one O(16)Ca3YCo square pyramid,  a cornercorner with one O(20)Ca3YCo square pyramid,  a cornercorner with one O(23)Ca3YCo square pyramid,  a cornercorner with one O(9)Ca3YCo square pyramid,  a cornercorner with one O(22)Ca4Co square pyramid,  a cornercorner with one O(8)Ca4Co square pyramid, corners with two equivalent O(15)Ca2Y2Co square pyramids, corners with two equivalent O(4)Ca4Co square pyramids,  an edgeedge with one O(1)Ca2Y2Co square pyramid,  an edgeedge with one O(2)Ca3YCo square pyramid,  an edgeedge with one O(23)Ca3YCo square pyramid,  an edgeedge with one O(9)Ca3YCo square pyramid,  an edgeedge with one O(8)Ca4Co square pyramid,  a faceface with one O(19)Ca2Y2Co square pyramid,  a faceface with one O(18)Ca4Co square pyramid, and  a faceface with one O(22)Ca4Co square pyramid. In the thirteenth O site, O(13) is bonded to one Ca(2), one Ca(4), one Ca(8), one Y(1), and one Co(1) atom to form distorted OCa3YCo square pyramids that share  a cornercorner with one O(1)Ca2Y2Co square pyramid,  a cornercorner with one O(11)Ca2Y2Co square pyramid,  a cornercorner with one O(15)Ca2Y2Co square pyramid,  a cornercorner with one O(10)Ca3YCo square pyramid,  a cornercorner with one O(12)Ca3YCo square pyramid,  a cornercorner with one O(17)Ca3YCo square pyramid,  a cornercorner with one O(3)Ca3YCo square pyramid,  a cornercorner with one O(6)Ca3YCo square pyramid, corners with two equivalent O(19)Ca2Y2Co square pyramids, corners with two equivalent O(21)Ca3YCo square pyramids, corners with two equivalent O(9)Ca3YCo square pyramids,  an edgeedge with one O(1)Ca2Y2Co square pyramid,  an edgeedge with one O(15)Ca2Y2Co square pyramid,  an edgeedge with one O(17)Ca3YCo square pyramid,  an edgeedge with one O(23)Ca3YCo square pyramid,  an edgeedge with one O(24)Ca3YCo square pyramid,  a faceface with one O(3)Ca3YCo square pyramid, and  a faceface with one O(7)Ca3YCo square pyramid. In the fourteenth O site, O(14) is bonded to one Ca(3), one Ca(5), one Ca(9), one Y(2), and one Co(2) atom to form distorted OCa3YCo square pyramids that share  a cornercorner with one O(11)Ca2Y2Co square pyramid,  a cornercorner with one O(12)Ca3YCo square pyramid,  a cornercorner with one O(16)Ca3YCo square pyramid,  a cornercorner with one O(2)Ca3YCo square pyramid,  a cornercorner with one O(9)Ca3YCo square pyramid,  a cornercorner with one O(18)Ca4Co square pyramid,  a cornercorner with one O(4)Ca4Co square pyramid, corners with two equivalent O(10)Ca3YCo square pyramids, corners with two equivalent O(20)Ca3YCo square pyramids, corners with two equivalent O(22)Ca4Co square pyramids,  an edgeedge with one O(16)Ca3YCo square pyramid,  an edgeedge with one O(2)Ca3YCo square pyramid,  an edgeedge with one O(23)Ca3YCo square pyramid,  an edgeedge with one O(24)Ca3YCo square pyramid,  an edgeedge with one O(18)Ca4Co square pyramid,  a faceface with one O(6)Ca3YCo square pyramid,  a faceface with one O(4)Ca4Co square pyramid, and  a faceface with one O(8)Ca4Co square pyramid. In the fifteenth O site, O(15) is bonded to one Ca(4), one Ca(6), one Y(1), one Y(3), and one Co(1) atom to form distorted OCa2Y2Co square pyramids that share  a cornercorner with one O(1)Ca2Y2Co square pyramid,  a cornercorner with one O(11)Ca2Y2Co square pyramid,  a cornercorner with one O(13)Ca3YCo square pyramid,  a cornercorner with one O(21)Ca3YCo square pyramid,  a cornercorner with one O(3)Ca3YCo square pyramid,  a cornercorner with one O(18)Ca4Co square pyramid,  a cornercorner with one O(22)Ca4Co square pyramid, corners with two equivalent O(12)Ca3YCo square pyramids, corners with two equivalent O(23)Ca3YCo square pyramids, corners with two equivalent O(7)Ca3YCo square pyramids,  an edgeedge with one O(13)Ca3YCo square pyramid,  an edgeedge with one O(17)Ca3YCo square pyramid,  an edgeedge with one O(3)Ca3YCo square pyramid, edges with two equivalent O(19)Ca2Y2Co square pyramids,  a faceface with one O(1)Ca2Y2Co square pyramid, and  a faceface with one O(9)Ca3YCo square pyramid. In the sixteenth O site, O(16) is bonded to one Ca(1), one Ca(5), one Ca(7), one Y(2), and one Co(2) atom to form distorted OCa3YCo square pyramids that share  a cornercorner with one O(12)Ca3YCo square pyramid,  a cornercorner with one O(14)Ca3YCo square pyramid,  a cornercorner with one O(17)Ca3YCo square pyramid,  a cornercorner with one O(2)Ca3YCo square pyramid,  a cornercorner with one O(21)Ca3YCo square pyramid,  a cornercorner with one O(6)Ca3YCo square pyramid,  a cornercorner with one O(22)Ca4Co square pyramid,  a cornercorner with one O(4)Ca4Co square pyramid, corners with two equivalent O(11)Ca2Y2Co square pyramids, corners with two equivalent O(24)Ca3YCo square pyramids, corners with two equivalent O(8)Ca4Co square pyramids,  an edgeedge with one O(14)Ca3YCo square pyramid,  an edgeedge with one O(18)Ca4Co square pyramid,  an edgeedge with one O(4)Ca4Co square pyramid, edges with two equivalent O(20)Ca3YCo square pyramids,  a faceface with one O(10)Ca3YCo square pyramid,  a faceface with one O(2)Ca3YCo square pyramid, and  a faceface with one O(6)Ca3YCo square pyramid. In the seventeenth O site, O(17) is bonded to one Ca(2), one Ca(7), one Ca(8), one Y(3), and one Co(1) atom to form distorted OCa3YCo square pyramids that share  a cornercorner with one O(19)Ca2Y2Co square pyramid,  a cornercorner with one O(13)Ca3YCo square pyramid,  a cornercorner with one O(16)Ca3YCo square pyramid,  a cornercorner with one O(2)Ca3YCo square pyramid,  a cornercorner with one O(20)Ca3YCo square pyramid,  a cornercorner with one O(3)Ca3YCo square pyramid, corners with two equivalent O(10)Ca3YCo square pyramids, corners with two equivalent O(24)Ca3YCo square pyramids, corners with three equivalent O(7)Ca3YCo square pyramids,  an edgeedge with one O(15)Ca2Y2Co square pyramid,  an edgeedge with one O(13)Ca3YCo square pyramid,  an edgeedge with one O(6)Ca3YCo square pyramid, edges with two equivalent O(21)Ca3YCo square pyramids,  a faceface with one O(1)Ca2Y2Co square pyramid,  a faceface with one O(11)Ca2Y2Co square pyramid, and  a faceface with one O(3)Ca3YCo square pyramid. In the eighteenth O site, O(18) is bonded to one Ca(1), one Ca(3), one Ca(6), one Ca(9), and one Co(2) atom to form distorted OCa4Co square pyramids that share  a cornercorner with one O(1)Ca2Y2Co square pyramid,  a cornercorner with one O(15)Ca2Y2Co square pyramid,  a cornercorner with one O(19)Ca2Y2Co square pyramid,  a cornercorner with one O(14)Ca3YCo square pyramid,  a cornercorner with one O(20)Ca3YCo square pyramid,  a cornercorner with one O(6)Ca3YCo square pyramid,  a cornercorner with one O(4)Ca4Co square pyramid, corners with two equivalent O(23)Ca3YCo square pyramids, corners with two equivalent O(9)Ca3YCo square pyramids, corners with three equivalent O(8)Ca4Co square pyramids,  an edgeedge with one O(14)Ca3YCo square pyramid,  an edgeedge with one O(16)Ca3YCo square pyramid, edges with two equivalent O(22)Ca4Co square pyramids,  a faceface with one O(12)Ca3YCo square pyramid,  a faceface with one O(2)Ca3YCo square pyramid, and  a faceface with one O(4)Ca4Co square pyramid. In the nineteenth O site, O(19) is bonded to one Ca(4), one Ca(6), one Y(1), one Y(3), and one Co(3) atom to form distorted OCa2Y2Co square pyramids that share  a cornercorner with one O(11)Ca2Y2Co square pyramid,  a cornercorner with one O(17)Ca3YCo square pyramid,  a cornercorner with one O(21)Ca3YCo square pyramid,  a cornercorner with one O(23)Ca3YCo square pyramid,  a cornercorner with one O(9)Ca3YCo square pyramid,  a cornercorner with one O(18)Ca4Co square pyramid,  a cornercorner with one O(8)Ca4Co square pyramid, corners with two equivalent O(13)Ca3YCo square pyramids, corners with two equivalent O(3)Ca3YCo square pyramids,  an edgeedge with one O(23)Ca3YCo square pyramid,  an edgeedge with one O(7)Ca3YCo square pyramid,  an edgeedge with one O(22)Ca4Co square pyramid, edges with two equivalent O(15)Ca2Y2Co square pyramids,  a faceface with one O(1)Ca2Y2Co square pyramid,  a faceface with one O(12)Ca3YCo square pyramid, and  a faceface with one O(9)Ca3YCo square pyramid. In the twentieth O site, O(20) is bonded to one Ca(1), one Ca(5), one Ca(7), one Y(2), and one Co(4) atom to form distorted OCa3YCo square pyramids that share  a cornercorner with one O(10)Ca3YCo square pyramid,  a cornercorner with one O(12)Ca3YCo square pyramid,  a cornercorner with one O(17)Ca3YCo square pyramid,  a cornercorner with one O(24)Ca3YCo square pyramid,  a cornercorner with one O(7)Ca3YCo square pyramid,  a cornercorner with one O(18)Ca4Co square pyramid,  a cornercorner with one O(22)Ca4Co square pyramid, corners with two equivalent O(14)Ca3YCo square pyramids, corners with two equivalent O(4)Ca4Co square pyramids, corners with three equivalent O(6)Ca3YCo square pyramids,  an edgeedge with one O(21)Ca3YCo square pyramid,  an edgeedge with one O(24)Ca3YCo square pyramid,  an edgeedge with one O(8)Ca4Co square pyramid, edges with two equivalent O(16)Ca3YCo square pyramids,  a faceface with one O(11)Ca2Y2Co square pyramid,  a faceface with one O(10)Ca3YCo square pyramid, and  a faceface with one O(2)Ca3YCo square pyramid. In the twenty-first O site, O(21) is bonded to one Ca(2), one Ca(7), one Ca(8), one Y(3), and one Co(4) atom to form distorted OCa3YCo square pyramids that share  a cornercorner with one O(11)Ca2Y2Co square pyramid,  a cornercorner with one O(15)Ca2Y2Co square pyramid,  a cornercorner with one O(19)Ca2Y2Co square pyramid,  a cornercorner with one O(10)Ca3YCo square pyramid,  a cornercorner with one O(16)Ca3YCo square pyramid,  a cornercorner with one O(2)Ca3YCo square pyramid,  a cornercorner with one O(24)Ca3YCo square pyramid,  a cornercorner with one O(7)Ca3YCo square pyramid, corners with two equivalent O(1)Ca2Y2Co square pyramids, corners with two equivalent O(13)Ca3YCo square pyramids, corners with two equivalent O(6)Ca3YCo square pyramids,  an edgeedge with one O(10)Ca3YCo square pyramid,  an edgeedge with one O(20)Ca3YCo square pyramid,  an edgeedge with one O(24)Ca3YCo square pyramid, edges with two equivalent O(17)Ca3YCo square pyramids,  a faceface with one O(11)Ca2Y2Co square pyramid,  a faceface with one O(3)Ca3YCo square pyramid, and  a faceface with one O(7)Ca3YCo square pyramid. In the twenty-second O site, O(22) is bonded to one Ca(1), one Ca(3), one Ca(6), one Ca(9), and one Co(3) atom to form distorted OCa4Co square pyramids that share  a cornercorner with one O(1)Ca2Y2Co square pyramid,  a cornercorner with one O(15)Ca2Y2Co square pyramid,  a cornercorner with one O(12)Ca3YCo square pyramid,  a cornercorner with one O(16)Ca3YCo square pyramid,  a cornercorner with one O(20)Ca3YCo square pyramid,  a cornercorner with one O(23)Ca3YCo square pyramid,  a cornercorner with one O(9)Ca3YCo square pyramid,  a cornercorner with one O(8)Ca4Co square pyramid, corners with two equivalent O(14)Ca3YCo square pyramids, corners with two equivalent O(2)Ca3YCo square pyramids,  an edgeedge with one O(19)Ca2Y2Co square pyramid,  an edgeedge with one O(23)Ca3YCo square pyramid,  an edgeedge with one O(9)Ca3YCo square pyramid, edges with two equivalent O(18)Ca4Co square pyramids,  a faceface with one O(12)Ca3YCo square pyramid,  a faceface with one O(4)Ca4Co square pyramid, and  a faceface with one O(8)Ca4Co square pyramid. In the twenty-third O site, O(23) is bonded to one Ca(3), one Ca(4), one Ca(9), one Y(1), and one Co(3) atom to form distorted OCa3YCo square pyramids that share  a cornercorner with one O(1)Ca2Y2Co square pyramid,  a cornercorner with one O(19)Ca2Y2Co square pyramid,  a cornercorner with one O(12)Ca3YCo square pyramid,  a cornercorner with one O(2)Ca3YCo square pyramid,  a cornercorner with one O(3)Ca3YCo square pyramid,  a cornercorner with one O(7)Ca3YCo square pyramid,  a cornercorner with one O(9)Ca3YCo square pyramid,  a cornercorner with one O(22)Ca4Co square pyramid, corners with two equivalent O(15)Ca2Y2Co square pyramids, corners with two equivalent O(18)Ca4Co square pyramids, corners with two equivalent O(4)Ca4Co square pyramids,  an edgeedge with one O(19)Ca2Y2Co square pyramid,  an edgeedge with one O(12)Ca3YCo square pyramid,  an edgeedge with one O(13)Ca3YCo square pyramid,  an edgeedge with one O(14)Ca3YCo square pyramid,  an edgeedge with one O(22)Ca4Co square pyramid,  a faceface with one O(9)Ca3YCo square pyramid, and  a faceface with one O(8)Ca4Co square pyramid. In the twenty-fourth O site, O(24) is bonded to one Ca(2), one Ca(5), one Ca(8), one Y(2), and one Co(4) atom to form distorted OCa3YCo square pyramids that share  a cornercorner with one O(1)Ca2Y2Co square pyramid,  a cornercorner with one O(11)Ca2Y2Co square pyramid,  a cornercorner with one O(10)Ca3YCo square pyramid,  a cornercorner with one O(2)Ca3YCo square pyramid,  a cornercorner with one O(20)Ca3YCo square pyramid,  a cornercorner with one O(21)Ca3YCo square pyramid,  a cornercorner with one O(4)Ca4Co square pyramid,  a cornercorner with one O(8)Ca4Co square pyramid, corners with two equivalent O(16)Ca3YCo square pyramids, corners with two equivalent O(17)Ca3YCo square pyramids, corners with two equivalent O(3)Ca3YCo square pyramids,  an edgeedge with one O(11)Ca2Y2Co square pyramid,  an edgeedge with one O(13)Ca3YCo square pyramid,  an edgeedge with one O(14)Ca3YCo square pyramid,  an edgeedge with one O(20)Ca3YCo square pyramid,  an edgeedge with one O(21)Ca3YCo square pyramid,  a faceface with one O(10)Ca3YCo square pyramid,  a faceface with one O(6)Ca3YCo square pyramid, and  a faceface with one O(7)Ca3YCo square pyramid.
Ca9Y3(CoO6)4 crystallizes in the triclinic P1 space group. There are nine inequivalent Ca sites. In the first Ca site, Ca(1) is bonded in a 8-coordinate geometry to one O(12), one O(16), one O(18), one O(2), one O(20), one O(22), one O(4), and one O(8) atom. The Ca(1)-O(12) bond length is 2.62 Å. The Ca(1)-O(16) bond length is 2.46 Å. The Ca(1)-O(18) bond length is 2.58 Å. The Ca(1)-O(2) bond length is 2.41 Å. The Ca(1)-O(20) bond length is 2.42 Å. The Ca(1)-O(22) bond length is 2.43 Å. The Ca(1)-O(4) bond length is 2.38 Å. The Ca(1)-O(8) bond length is 2.42 Å. In the second Ca site, Ca(2) is bonded in a 8-coordinate geometry to one O(10), one O(13), one O(17), one O(21), one O(24), one O(3), one O(6), and one O(7) atom. The Ca(2)-O(10) bond length is 2.46 Å. The Ca(2)-O(13) bond length is 2.61 Å. The Ca(2)-O(17) bond length is 2.47 Å. The Ca(2)-O(21) bond length is 2.38 Å. The Ca(2)-O(24) bond length is 2.42 Å. The Ca(2)-O(3) bond length is 2.43 Å. The Ca(2)-O(6) bond length is 2.41 Å. The Ca(2)-O(7) bond length is 2.62 Å. In the third Ca site, Ca(3) is bonded in a 8-coordinate geometry to one O(14), one O(18), one O(22), one O(23), one O(4), one O(5), one O(8), and one O(9) atom. The Ca(3)-O(14) bond length is 2.63 Å. The Ca(3)-O(18) bond length is 2.45 Å. The Ca(3)-O(22) bond length is 2.41 Å. The Ca(3)-O(23) bond length is 2.41 Å. The Ca(3)-O(4) bond length is 2.41 Å. The Ca(3)-O(5) bond length is 2.44 Å. The Ca(3)-O(8) bond length is 2.53 Å. The Ca(3)-O(9) bond length is 2.45 Å. In the fourth Ca site, Ca(4) is bonded in a 8-coordinate geometry to one O(13), one O(15), one O(19), one O(23), one O(3), one O(5), one O(7), and one O(9) atom. The Ca(4)-O(13) bond length is 2.37 Å. The Ca(4)-O(15) bond length is 2.40 Å. The Ca(4)-O(19) bond length is 2.37 Å. The Ca(4)-O(23) bond length is 2.56 Å. The Ca(4)-O(3) bond length is 2.39 Å. The Ca(4)-O(5) bond length is 2.64 Å. The Ca(4)-O(7) bond length is 2.44 Å. The Ca(4)-O(9) bond length is 2.40 Å. In the fifth Ca site, Ca(5) is bonded in a 8-coordinate geometry to one O(10), one O(14), one O(16), one O(20), one O(24), one O(4), one O(6), and one O(8) atom. The Ca(5)-O(10) bond length is 2.43 Å. The Ca(5)-O(14) bond length is 2.37 Å. The Ca(5)-O(16) bond length is 2.36 Å. The Ca(5)-O(20) bond length is 2.39 Å. The Ca(5)-O(24) bond length is 2.58 Å. The Ca(5)-O(4) bond length is 2.38 Å. The Ca(5)-O(6) bond length is 2.63 Å. The Ca(5)-O(8) bond length is 2.42 Å. In the sixth Ca site, Ca(6) is bonded in a 8-coordinate geometry to one O(1), one O(12), one O(15), one O(18), one O(19), one O(22), one O(5), and one O(9) atom. The Ca(6)-O(1) bond length is 2.62 Å. The Ca(6)-O(12) bond length is 2.37 Å. The Ca(6)-O(15) bond length is 2.40 Å. The Ca(6)-O(18) bond length is 2.43 Å. The Ca(6)-O(19) bond length is 2.63 Å. The Ca(6)-O(22) bond length is 2.38 Å. The Ca(6)-O(5) bond length is 2.37 Å. The Ca(6)-O(9) bond length is 2.40 Å. In the seventh Ca site, Ca(7) is bonded in a 8-coordinate geometry to one O(10), one O(11), one O(16), one O(17), one O(2), one O(20), one O(21), and one O(6) atom. The Ca(7)-O(10) bond length is 2.38 Å. The Ca(7)-O(11) bond length is 2.40 Å. The Ca(7)-O(16) bond length is 2.41 Å. The Ca(7)-O(17) bond length is 2.45 Å. The Ca(7)-O(2) bond length is 2.54 Å. The Ca(7)-O(20) bond length is 2.59 Å. The Ca(7)-O(21) bond length is 2.37 Å. The Ca(7)-O(6) bond length is 2.38 Å. In the eighth Ca site, Ca(8) is bonded in a 8-coordinate geometry to one O(1), one O(11), one O(13), one O(17), one O(21), one O(24), one O(3), and one O(7) atom. The Ca(8)-O(1) bond length is 2.38 Å. The Ca(8)-O(11) bond length is 2.38 Å. The Ca(8)-O(13) bond length is 2.40 Å. The Ca(8)-O(17) bond length is 2.43 Å. The Ca(8)-O(21) bond length is 2.61 Å. The Ca(8)-O(24) bond length is 2.39 Å. The Ca(8)-O(3) bond length is 2.60 Å. The Ca(8)-O(7) bond length is 2.39 Å. In the ninth Ca site, Ca(9) is bonded in a 8-coordinate geometry to one O(12), one O(14), one O(18), one O(2), one O(22), one O(23), one O(4), and one O(8) atom. The Ca(9)-O(12) bond length is 2.41 Å. The Ca(9)-O(14) bond length is 2.39 Å. The Ca(9)-O(18) bond length is 2.44 Å. The Ca(9)-O(2) bond length is 2.41 Å. The Ca(9)-O(22) bond length is 2.61 Å. The Ca(9)-O(23) bond length is 2.42 Å. The Ca(9)-O(4) bond length is 2.56 Å. The Ca(9)-O(8) bond length is 2.41 Å. There are three inequivalent Y sites. In the first Y site, Y(1) is bonded in a 8-coordinate geometry to one O(1), one O(12), one O(13), one O(15), one O(19), one O(23), one O(5), and one O(9) atom. The Y(1)-O(1) bond length is 2.33 Å. The Y(1)-O(12) bond length is 2.35 Å. The Y(1)-O(13) bond length is 2.34 Å. The Y(1)-O(15) bond length is 2.58 Å. The Y(1)-O(19) bond length is 2.38 Å. The Y(1)-O(23) bond length is 2.34 Å. The Y(1)-O(5) bond length is 2.40 Å. The Y(1)-O(9) bond length is 2.51 Å. In the second Y site, Y(2) is bonded in a 8-coordinate geometry to one O(10), one O(11), one O(14), one O(16), one O(2), one O(20), one O(24), and one O(6) atom. The Y(2)-O(10) bond length is 2.54 Å. The Y(2)-O(11) bond length is 2.39 Å. The Y(2)-O(14) bond length is 2.33 Å. The Y(2)-O(16) bond length is 2.51 Å. The Y(2)-O(2) bond length is 2.33 Å. The Y(2)-O(20) bond length is 2.38 Å. The Y(2)-O(24) bond length is 2.33 Å. The Y(2)-O(6) bond length is 2.37 Å. In the third Y site, Y(3) is bonded in a 8-coordinate geometry to one O(1), one O(11), one O(15), one O(17), one O(19), one O(21), one O(3), and one O(7) atom. The Y(3)-O(1) bond length is 2.37 Å. The Y(3)-O(11) bond length is 2.57 Å. The Y(3)-O(15) bond length is 2.36 Å. The Y(3)-O(17) bond length is 2.52 Å. The Y(3)-O(19) bond length is 2.33 Å. The Y(3)-O(21) bond length is 2.36 Å. The Y(3)-O(3) bond length is 2.34 Å. The Y(3)-O(7) bond length is 2.36 Å. There are four inequivalent Co sites. In the first Co site, Co(1) is bonded in an octahedral geometry to one O(1), one O(13), one O(15), one O(17), one O(3), and one O(5) atom. The Co(1)-O(1) bond length is 1.95 Å. The Co(1)-O(13) bond length is 1.91 Å. The Co(1)-O(15) bond length is 1.91 Å. The Co(1)-O(17) bond length is 1.82 Å. The Co(1)-O(3) bond length is 1.89 Å. The Co(1)-O(5) bond length is 1.83 Å. In the second Co site, Co(2) is bonded in an octahedral geometry to one O(14), one O(16), one O(18), one O(2), one O(4), and one O(6) atom. The Co(2)-O(14) bond length is 1.92 Å. The Co(2)-O(16) bond length is 1.90 Å. The Co(2)-O(18) bond length is 1.81 Å. The Co(2)-O(2) bond length is 1.94 Å. The Co(2)-O(4) bond length is 1.86 Å. The Co(2)-O(6) bond length is 1.85 Å. In the third Co site, Co(3) is bonded in an octahedral geometry to one O(12), one O(19), one O(22), one O(23), one O(8), and one O(9) atom. The Co(3)-O(12) bond length is 1.90 Å. The Co(3)-O(19) bond length is 1.94 Å. The Co(3)-O(22) bond length is 1.83 Å. The Co(3)-O(23) bond length is 1.92 Å. The Co(3)-O(8) bond length is 1.85 Å. The Co(3)-O(9) bond length is 1.86 Å. In the fourth Co site, Co(4) is bonded in an octahedral geometry to one O(10), one O(11), one O(20), one O(21), one O(24), and one O(7) atom. The Co(4)-O(10) bond length is 1.88 Å. The Co(4)-O(11) bond length is 1.91 Å. The Co(4)-O(20) bond length is 1.84 Å. The Co(4)-O(21) bond length is 1.88 Å. The Co(4)-O(24) bond length is 1.92 Å. The Co(4)-O(7) bond length is 1.85 Å. There are twenty-four inequivalent O sites. In the first O site, O(1) is bonded to one Ca(6), one Ca(8), one Y(1), one Y(3), and one Co(1) atom to form distorted OCa2Y2Co square pyramids that share  a cornercorner with one O(15)Ca2Y2Co square pyramid,  a cornercorner with one O(13)Ca3YCo square pyramid,  a cornercorner with one O(23)Ca3YCo square pyramid,  a cornercorner with one O(24)Ca3YCo square pyramid,  a cornercorner with one O(3)Ca3YCo square pyramid,  a cornercorner with one O(18)Ca4Co square pyramid,  a cornercorner with one O(22)Ca4Co square pyramid, corners with two equivalent O(21)Ca3YCo square pyramids, corners with two equivalent O(7)Ca3YCo square pyramids, corners with two equivalent O(9)Ca3YCo square pyramids,  an edgeedge with one O(11)Ca2Y2Co square pyramid,  an edgeedge with one O(12)Ca3YCo square pyramid,  an edgeedge with one O(13)Ca3YCo square pyramid,  an edgeedge with one O(3)Ca3YCo square pyramid,  a faceface with one O(15)Ca2Y2Co square pyramid,  a faceface with one O(19)Ca2Y2Co square pyramid, and  a faceface with one O(17)Ca3YCo square pyramid. In the second O site, O(2) is bonded to one Ca(1), one Ca(7), one Ca(9), one Y(2), and one Co(2) atom to form distorted OCa3YCo square pyramids that share  a cornercorner with one O(14)Ca3YCo square pyramid,  a cornercorner with one O(16)Ca3YCo square pyramid,  a cornercorner with one O(17)Ca3YCo square pyramid,  a cornercorner with one O(21)Ca3YCo square pyramid,  a cornercorner with one O(23)Ca3YCo square pyramid,  a cornercorner with one O(24)Ca3YCo square pyramid,  a cornercorner with one O(6)Ca3YCo square pyramid,  a cornercorner with one O(4)Ca4Co square pyramid, corners with two equivalent O(10)Ca3YCo square pyramids, corners with two equivalent O(22)Ca4Co square pyramids, corners with two equivalent O(8)Ca4Co square pyramids,  an edgeedge with one O(11)Ca2Y2Co square pyramid,  an edgeedge with one O(12)Ca3YCo square pyramid,  an edgeedge with one O(14)Ca3YCo square pyramid,  an edgeedge with one O(6)Ca3YCo square pyramid,  an edgeedge with one O(4)Ca4Co square pyramid,  a faceface with one O(16)Ca3YCo square pyramid,  a faceface with one O(20)Ca3YCo square pyramid, and  a faceface with one O(18)Ca4Co square pyramid. In the third O site, O(3) is bonded to one Ca(2), one Ca(4), one Ca(8), one Y(3), and one Co(1) atom to form distorted OCa3YCo square pyramids that share  a cornercorner with one O(1)Ca2Y2Co square pyramid,  a cornercorner with one O(15)Ca2Y2Co square pyramid,  a cornercorner with one O(10)Ca3YCo square pyramid,  a cornercorner with one O(13)Ca3YCo square pyramid,  a cornercorner with one O(17)Ca3YCo square pyramid,  a cornercorner with one O(23)Ca3YCo square pyramid,  a cornercorner with one O(6)Ca3YCo square pyramid,  a cornercorner with one O(9)Ca3YCo square pyramid, corners with two equivalent O(11)Ca2Y2Co square pyramids, corners with two equivalent O(19)Ca2Y2Co square pyramids, corners with two equivalent O(24)Ca3YCo square pyramids,  an edgeedge with one O(1)Ca2Y2Co square pyramid,  an edgeedge with one O(15)Ca2Y2Co square pyramid, edges with two equivalent O(7)Ca3YCo square pyramids,  a faceface with one O(13)Ca3YCo square pyramid,  a faceface with one O(17)Ca3YCo square pyramid, and  a faceface with one O(21)Ca3YCo square pyramid. In the fourth O site, O(4) is bonded to one Ca(1), one Ca(3), one Ca(5), one Ca(9), and one Co(2) atom to form distorted OCa4Co square pyramids that share  a cornercorner with one O(10)Ca3YCo square pyramid,  a cornercorner with one O(14)Ca3YCo square pyramid,  a cornercorner with one O(16)Ca3YCo square pyramid,  a cornercorner with one O(2)Ca3YCo square pyramid,  a cornercorner with one O(24)Ca3YCo square pyramid,  a cornercorner with one O(9)Ca3YCo square pyramid,  a cornercorner with one O(18)Ca4Co square pyramid, corners with two equivalent O(12)Ca3YCo square pyramids, corners with two equivalent O(20)Ca3YCo square pyramids, corners with two equivalent O(23)Ca3YCo square pyramids,  an edgeedge with one O(16)Ca3YCo square pyramid,  an edgeedge with one O(2)Ca3YCo square pyramid,  an edgeedge with one O(6)Ca3YCo square pyramid, edges with two equivalent O(8)Ca4Co square pyramids,  a faceface with one O(14)Ca3YCo square pyramid,  a faceface with one O(18)Ca4Co square pyramid, and  a faceface with one O(22)Ca4Co square pyramid. In the fifth O site, O(5) is bonded in a 5-coordinate geometry to one Ca(3), one Ca(4), one Ca(6), one Y(1), and one Co(1) atom. In the sixth O site, O(6) is bonded to one Ca(2), one Ca(5), one Ca(7), one Y(2), and one Co(2) atom to form distorted OCa3YCo square pyramids that share  a cornercorner with one O(13)Ca3YCo square pyramid,  a cornercorner with one O(16)Ca3YCo square pyramid,  a cornercorner with one O(2)Ca3YCo square pyramid,  a cornercorner with one O(3)Ca3YCo square pyramid,  a cornercorner with one O(7)Ca3YCo square pyramid,  a cornercorner with one O(18)Ca4Co square pyramid,  a cornercorner with one O(8)Ca4Co square pyramid, corners with two equivalent O(11)Ca2Y2Co square pyramids, corners with two equivalent O(21)Ca3YCo square pyramids, corners with three equivalent O(20)Ca3YCo square pyramids,  an edgeedge with one O(17)Ca3YCo square pyramid,  an edgeedge with one O(2)Ca3YCo square pyramid,  an edgeedge with one O(4)Ca4Co square pyramid, edges with two equivalent O(10)Ca3YCo square pyramids,  a faceface with one O(14)Ca3YCo square pyramid,  a faceface with one O(16)Ca3YCo square pyramid, and  a faceface with one O(24)Ca3YCo square pyramid. In the seventh O site, O(7) is bonded to one Ca(2), one Ca(4), one Ca(8), one Y(3), and one Co(4) atom to form distorted OCa3YCo square pyramids that share  a cornercorner with one O(11)Ca2Y2Co square pyramid,  a cornercorner with one O(20)Ca3YCo square pyramid,  a cornercorner with one O(21)Ca3YCo square pyramid,  a cornercorner with one O(23)Ca3YCo square pyramid,  a cornercorner with one O(6)Ca3YCo square pyramid,  a cornercorner with one O(9)Ca3YCo square pyramid, corners with two equivalent O(1)Ca2Y2Co square pyramids, corners with two equivalent O(15)Ca2Y2Co square pyramids, corners with three equivalent O(17)Ca3YCo square pyramids,  an edgeedge with one O(11)Ca2Y2Co square pyramid,  an edgeedge with one O(19)Ca2Y2Co square pyramid,  an edgeedge with one O(10)Ca3YCo square pyramid, edges with two equivalent O(3)Ca3YCo square pyramids,  a faceface with one O(13)Ca3YCo square pyramid,  a faceface with one O(21)Ca3YCo square pyramid, and  a faceface with one O(24)Ca3YCo square pyramid. In the eighth O site, O(8) is bonded to one Ca(1), one Ca(3), one Ca(5), one Ca(9), and one Co(3) atom to form distorted OCa4Co square pyramids that share  a cornercorner with one O(19)Ca2Y2Co square pyramid,  a cornercorner with one O(10)Ca3YCo square pyramid,  a cornercorner with one O(12)Ca3YCo square pyramid,  a cornercorner with one O(24)Ca3YCo square pyramid,  a cornercorner with one O(6)Ca3YCo square pyramid,  a cornercorner with one O(22)Ca4Co square pyramid, corners with two equivalent O(16)Ca3YCo square pyramids, corners with two equivalent O(2)Ca3YCo square pyramids, corners with three equivalent O(18)Ca4Co square pyramids,  an edgeedge with one O(12)Ca3YCo square pyramid,  an edgeedge with one O(20)Ca3YCo square pyramid,  an edgeedge with one O(9)Ca3YCo square pyramid, edges with two equivalent O(4)Ca4Co square pyramids,  a faceface with one O(14)Ca3YCo square pyramid,  a faceface with one O(23)Ca3YCo square pyramid, and  a faceface with one O(22)Ca4Co square pyramid. In the ninth O site, O(9) is bonded to one Ca(3), one Ca(4), one Ca(6), one Y(1), and one Co(3) atom to form distorted OCa3YCo square pyramids that share  a cornercorner with one O(19)Ca2Y2Co square pyramid,  a cornercorner with one O(12)Ca3YCo square pyramid,  a cornercorner with one O(14)Ca3YCo square pyramid,  a cornercorner with one O(23)Ca3YCo square pyramid,  a cornercorner with one O(3)Ca3YCo square pyramid,  a cornercorner with one O(7)Ca3YCo square pyramid,  a cornercorner with one O(22)Ca4Co square pyramid,  a cornercorner with one O(4)Ca4Co square pyramid, corners with two equivalent O(1)Ca2Y2Co square pyramids, corners with two equivalent O(13)Ca3YCo square pyramids, corners with two equivalent O(18)Ca4Co square pyramids,  an edgeedge with one O(12)Ca3YCo square pyramid,  an edgeedge with one O(22)Ca4Co square pyramid,  an edgeedge with one O(8)Ca4Co square pyramid,  a faceface with one O(15)Ca2Y2Co square pyramid,  a faceface with one O(19)Ca2Y2Co square pyramid, and  a faceface with one O(23)Ca3YCo square pyramid. In the tenth O site, O(10) is bonded to one Ca(2), one Ca(5), one Ca(7), one Y(2), and one Co(4) atom to form distorted OCa3YCo square pyramids that share  a cornercorner with one O(11)Ca2Y2Co square pyramid,  a cornercorner with one O(13)Ca3YCo square pyramid,  a cornercorner with one O(20)Ca3YCo square pyramid,  a cornercorner with one O(21)Ca3YCo square pyramid,  a cornercorner with one O(24)Ca3YCo square pyramid,  a cornercorner with one O(3)Ca3YCo square pyramid,  a cornercorner with one O(4)Ca4Co square pyramid,  a cornercorner with one O(8)Ca4Co square pyramid, corners with two equivalent O(14)Ca3YCo square pyramids, corners with two equivalent O(17)Ca3YCo square pyramids, corners with two equivalent O(2)Ca3YCo square pyramids,  an edgeedge with one O(11)Ca2Y2Co square pyramid,  an edgeedge with one O(21)Ca3YCo square pyramid,  an edgeedge with one O(7)Ca3YCo square pyramid, edges with two equivalent O(6)Ca3YCo square pyramids,  a faceface with one O(16)Ca3YCo square pyramid,  a faceface with one O(20)Ca3YCo square pyramid, and  a faceface with one O(24)Ca3YCo square pyramid. In the eleventh O site, O(11) is bonded to one Ca(7), one Ca(8), one Y(2), one Y(3), and one Co(4) atom to form distorted OCa2Y2Co square pyramids that share  a cornercorner with one O(15)Ca2Y2Co square pyramid,  a cornercorner with one O(19)Ca2Y2Co square pyramid,  a cornercorner with one O(10)Ca3YCo square pyramid,  a cornercorner with one O(13)Ca3YCo square pyramid,  a cornercorner with one O(14)Ca3YCo square pyramid,  a cornercorner with one O(21)Ca3YCo square pyramid,  a cornercorner with one O(24)Ca3YCo square pyramid,  a cornercorner with one O(7)Ca3YCo square pyramid, corners with two equivalent O(16)Ca3YCo square pyramids, corners with two equivalent O(3)Ca3YCo square pyramids, corners with two equivalent O(6)Ca3YCo square pyramids,  an edgeedge with one O(1)Ca2Y2Co square pyramid,  an edgeedge with one O(10)Ca3YCo square pyramid,  an edgeedge with one O(2)Ca3YCo square pyramid,  an edgeedge with one O(24)Ca3YCo square pyramid,  an edgeedge with one O(7)Ca3YCo square pyramid,  a faceface with one O(17)Ca3YCo square pyramid,  a faceface with one O(20)Ca3YCo square pyramid, and  a faceface with one O(21)Ca3YCo square pyramid. In the twelfth O site, O(12) is bonded to one Ca(1), one Ca(6), one Ca(9), one Y(1), and one Co(3) atom to form distorted OCa3YCo square pyramids that share  a cornercorner with one O(13)Ca3YCo square pyramid,  a cornercorner with one O(14)Ca3YCo square pyramid,  a cornercorner with one O(16)Ca3YCo square pyramid,  a cornercorner with one O(20)Ca3YCo square pyramid,  a cornercorner with one O(23)Ca3YCo square pyramid,  a cornercorner with one O(9)Ca3YCo square pyramid,  a cornercorner with one O(22)Ca4Co square pyramid,  a cornercorner with one O(8)Ca4Co square pyramid, corners with two equivalent O(15)Ca2Y2Co square pyramids, corners with two equivalent O(4)Ca4Co square pyramids,  an edgeedge with one O(1)Ca2Y2Co square pyramid,  an edgeedge with one O(2)Ca3YCo square pyramid,  an edgeedge with one O(23)Ca3YCo square pyramid,  an edgeedge with one O(9)Ca3YCo square pyramid,  an edgeedge with one O(8)Ca4Co square pyramid,  a faceface with one O(19)Ca2Y2Co square pyramid,  a faceface with one O(18)Ca4Co square pyramid, and  a faceface with one O(22)Ca4Co square pyramid. In the thirteenth O site, O(13) is bonded to one Ca(2), one Ca(4), one Ca(8), one Y(1), and one Co(1) atom to form distorted OCa3YCo square pyramids that share  a cornercorner with one O(1)Ca2Y2Co square pyramid,  a cornercorner with one O(11)Ca2Y2Co square pyramid,  a cornercorner with one O(15)Ca2Y2Co square pyramid,  a cornercorner with one O(10)Ca3YCo square pyramid,  a cornercorner with one O(12)Ca3YCo square pyramid,  a cornercorner with one O(17)Ca3YCo square pyramid,  a cornercorner with one O(3)Ca3YCo square pyramid,  a cornercorner with one O(6)Ca3YCo square pyramid, corners with two equivalent O(19)Ca2Y2Co square pyramids, corners with two equivalent O(21)Ca3YCo square pyramids, corners with two equivalent O(9)Ca3YCo square pyramids,  an edgeedge with one O(1)Ca2Y2Co square pyramid,  an edgeedge with one O(15)Ca2Y2Co square pyramid,  an edgeedge with one O(17)Ca3YCo square pyramid,  an edgeedge with one O(23)Ca3YCo square pyramid,  an edgeedge with one O(24)Ca3YCo square pyramid,  a faceface with one O(3)Ca3YCo square pyramid, and  a faceface with one O(7)Ca3YCo square pyramid. In the fourteenth O site, O(14) is bonded to one Ca(3), one Ca(5), one Ca(9), one Y(2), and one Co(2) atom to form distorted OCa3YCo square pyramids that share  a cornercorner with one O(11)Ca2Y2Co square pyramid,  a cornercorner with one O(12)Ca3YCo square pyramid,  a cornercorner with one O(16)Ca3YCo square pyramid,  a cornercorner with one O(2)Ca3YCo square pyramid,  a cornercorner with one O(9)Ca3YCo square pyramid,  a cornercorner with one O(18)Ca4Co square pyramid,  a cornercorner with one O(4)Ca4Co square pyramid, corners with two equivalent O(10)Ca3YCo square pyramids, corners with two equivalent O(20)Ca3YCo square pyramids, corners with two equivalent O(22)Ca4Co square pyramids,  an edgeedge with one O(16)Ca3YCo square pyramid,  an edgeedge with one O(2)Ca3YCo square pyramid,  an edgeedge with one O(23)Ca3YCo square pyramid,  an edgeedge with one O(24)Ca3YCo square pyramid,  an edgeedge with one O(18)Ca4Co square pyramid,  a faceface with one O(6)Ca3YCo square pyramid,  a faceface with one O(4)Ca4Co square pyramid, and  a faceface with one O(8)Ca4Co square pyramid. In the fifteenth O site, O(15) is bonded to one Ca(4), one Ca(6), one Y(1), one Y(3), and one Co(1) atom to form distorted OCa2Y2Co square pyramids that share  a cornercorner with one O(1)Ca2Y2Co square pyramid,  a cornercorner with one O(11)Ca2Y2Co square pyramid,  a cornercorner with one O(13)Ca3YCo square pyramid,  a cornercorner with one O(21)Ca3YCo square pyramid,  a cornercorner with one O(3)Ca3YCo square pyramid,  a cornercorner with one O(18)Ca4Co square pyramid,  a cornercorner with one O(22)Ca4Co square pyramid, corners with two equivalent O(12)Ca3YCo square pyramids, corners with two equivalent O(23)Ca3YCo square pyramids, corners with two equivalent O(7)Ca3YCo square pyramids,  an edgeedge with one O(13)Ca3YCo square pyramid,  an edgeedge with one O(17)Ca3YCo square pyramid,  an edgeedge with one O(3)Ca3YCo square pyramid, edges with two equivalent O(19)Ca2Y2Co square pyramids,  a faceface with one O(1)Ca2Y2Co square pyramid, and  a faceface with one O(9)Ca3YCo square pyramid. In the sixteenth O site, O(16) is bonded to one Ca(1), one Ca(5), one Ca(7), one Y(2), and one Co(2) atom to form distorted OCa3YCo square pyramids that share  a cornercorner with one O(12)Ca3YCo square pyramid,  a cornercorner with one O(14)Ca3YCo square pyramid,  a cornercorner with one O(17)Ca3YCo square pyramid,  a cornercorner with one O(2)Ca3YCo square pyramid,  a cornercorner with one O(21)Ca3YCo square pyramid,  a cornercorner with one O(6)Ca3YCo square pyramid,  a cornercorner with one O(22)Ca4Co square pyramid,  a cornercorner with one O(4)Ca4Co square pyramid, corners with two equivalent O(11)Ca2Y2Co square pyramids, corners with two equivalent O(24)Ca3YCo square pyramids, corners with two equivalent O(8)Ca4Co square pyramids,  an edgeedge with one O(14)Ca3YCo square pyramid,  an edgeedge with one O(18)Ca4Co square pyramid,  an edgeedge with one O(4)Ca4Co square pyramid, edges with two equivalent O(20)Ca3YCo square pyramids,  a faceface with one O(10)Ca3YCo square pyramid,  a faceface with one O(2)Ca3YCo square pyramid, and  a faceface with one O(6)Ca3YCo square pyramid. In the seventeenth O site, O(17) is bonded to one Ca(2), one Ca(7), one Ca(8), one Y(3), and one Co(1) atom to form distorted OCa3YCo square pyramids that share  a cornercorner with one O(19)Ca2Y2Co square pyramid,  a cornercorner with one O(13)Ca3YCo square pyramid,  a cornercorner with one O(16)Ca3YCo square pyramid,  a cornercorner with one O(2)Ca3YCo square pyramid,  a cornercorner with one O(20)Ca3YCo square pyramid,  a cornercorner with one O(3)Ca3YCo square pyramid, corners with two equivalent O(10)Ca3YCo square pyramids, corners with two equivalent O(24)Ca3YCo square pyramids, corners with three equivalent O(7)Ca3YCo square pyramids,  an edgeedge with one O(15)Ca2Y2Co square pyramid,  an edgeedge with one O(13)Ca3YCo square pyramid,  an edgeedge with one O(6)Ca3YCo square pyramid, edges with two equivalent O(21)Ca3YCo square pyramids,  a faceface with one O(1)Ca2Y2Co square pyramid,  a faceface with one O(11)Ca2Y2Co square pyramid, and  a faceface with one O(3)Ca3YCo square pyramid. In the eighteenth O site, O(18) is bonded to one Ca(1), one Ca(3), one Ca(6), one Ca(9), and one Co(2) atom to form distorted OCa4Co square pyramids that share  a cornercorner with one O(1)Ca2Y2Co square pyramid,  a cornercorner with one O(15)Ca2Y2Co square pyramid,  a cornercorner with one O(19)Ca2Y2Co square pyramid,  a cornercorner with one O(14)Ca3YCo square pyramid,  a cornercorner with one O(20)Ca3YCo square pyramid,  a cornercorner with one O(6)Ca3YCo square pyramid,  a cornercorner with one O(4)Ca4Co square pyramid, corners with two equivalent O(23)Ca3YCo square pyramids, corners with two equivalent O(9)Ca3YCo square pyramids, corners with three equivalent O(8)Ca4Co square pyramids,  an edgeedge with one O(14)Ca3YCo square pyramid,  an edgeedge with one O(16)Ca3YCo square pyramid, edges with two equivalent O(22)Ca4Co square pyramids,  a faceface with one O(12)Ca3YCo square pyramid,  a faceface with one O(2)Ca3YCo square pyramid, and  a faceface with one O(4)Ca4Co square pyramid. In the nineteenth O site, O(19) is bonded to one Ca(4), one Ca(6), one Y(1), one Y(3), and one Co(3) atom to form distorted OCa2Y2Co square pyramids that share  a cornercorner with one O(11)Ca2Y2Co square pyramid,  a cornercorner with one O(17)Ca3YCo square pyramid,  a cornercorner with one O(21)Ca3YCo square pyramid,  a cornercorner with one O(23)Ca3YCo square pyramid,  a cornercorner with one O(9)Ca3YCo square pyramid,  a cornercorner with one O(18)Ca4Co square pyramid,  a cornercorner with one O(8)Ca4Co square pyramid, corners with two equivalent O(13)Ca3YCo square pyramids, corners with two equivalent O(3)Ca3YCo square pyramids,  an edgeedge with one O(23)Ca3YCo square pyramid,  an edgeedge with one O(7)Ca3YCo square pyramid,  an edgeedge with one O(22)Ca4Co square pyramid, edges with two equivalent O(15)Ca2Y2Co square pyramids,  a faceface with one O(1)Ca2Y2Co square pyramid,  a faceface with one O(12)Ca3YCo square pyramid, and  a faceface with one O(9)Ca3YCo square pyramid. In the twentieth O site, O(20) is bonded to one Ca(1), one Ca(5), one Ca(7), one Y(2), and one Co(4) atom to form distorted OCa3YCo square pyramids that share  a cornercorner with one O(10)Ca3YCo square pyramid,  a cornercorner with one O(12)Ca3YCo square pyramid,  a cornercorner with one O(17)Ca3YCo square pyramid,  a cornercorner with one O(24)Ca3YCo square pyramid,  a cornercorner with one O(7)Ca3YCo square pyramid,  a cornercorner with one O(18)Ca4Co square pyramid,  a cornercorner with one O(22)Ca4Co square pyramid, corners with two equivalent O(14)Ca3YCo square pyramids, corners with two equivalent O(4)Ca4Co square pyramids, corners with three equivalent O(6)Ca3YCo square pyramids,  an edgeedge with one O(21)Ca3YCo square pyramid,  an edgeedge with one O(24)Ca3YCo square pyramid,  an edgeedge with one O(8)Ca4Co square pyramid, edges with two equivalent O(16)Ca3YCo square pyramids,  a faceface with one O(11)Ca2Y2Co square pyramid,  a faceface with one O(10)Ca3YCo square pyramid, and  a faceface with one O(2)Ca3YCo square pyramid. In the twenty-first O site, O(21) is bonded to one Ca(2), one Ca(7), one Ca(8), one Y(3), and one Co(4) atom to form distorted OCa3YCo square pyramids that share  a cornercorner with one O(11)Ca2Y2Co square pyramid,  a cornercorner with one O(15)Ca2Y2Co square pyramid,  a cornercorner with one O(19)Ca2Y2Co square pyramid,  a cornercorner with one O(10)Ca3YCo square pyramid,  a cornercorner with one O(16)Ca3YCo square pyramid,  a cornercorner with one O(2)Ca3YCo square pyramid,  a cornercorner with one O(24)Ca3YCo square pyramid,  a cornercorner with one O(7)Ca3YCo square pyramid, corners with two equivalent O(1)Ca2Y2Co square pyramids, corners with two equivalent O(13)Ca3YCo square pyramids, corners with two equivalent O(6)Ca3YCo square pyramids,  an edgeedge with one O(10)Ca3YCo square pyramid,  an edgeedge with one O(20)Ca3YCo square pyramid,  an edgeedge with one O(24)Ca3YCo square pyramid, edges with two equivalent O(17)Ca3YCo square pyramids,  a faceface with one O(11)Ca2Y2Co square pyramid,  a faceface with one O(3)Ca3YCo square pyramid, and  a faceface with one O(7)Ca3YCo square pyramid. In the twenty-second O site, O(22) is bonded to one Ca(1), one Ca(3), one Ca(6), one Ca(9), and one Co(3) atom to form distorted OCa4Co square pyramids that share  a cornercorner with one O(1)Ca2Y2Co square pyramid,  a cornercorner with one O(15)Ca2Y2Co square pyramid,  a cornercorner with one O(12)Ca3YCo square pyramid,  a cornercorner with one O(16)Ca3YCo square pyramid,  a cornercorner with one O(20)Ca3YCo square pyramid,  a cornercorner with one O(23)Ca3YCo square pyramid,  a cornercorner with one O(9)Ca3YCo square pyramid,  a cornercorner with one O(8)Ca4Co square pyramid, corners with two equivalent O(14)Ca3YCo square pyramids, corners with two equivalent O(2)Ca3YCo square pyramids,  an edgeedge with one O(19)Ca2Y2Co square pyramid,  an edgeedge with one O(23)Ca3YCo square pyramid,  an edgeedge with one O(9)Ca3YCo square pyramid, edges with two equivalent O(18)Ca4Co square pyramids,  a faceface with one O(12)Ca3YCo square pyramid,  a faceface with one O(4)Ca4Co square pyramid, and  a faceface with one O(8)Ca4Co square pyramid. In the twenty-third O site, O(23) is bonded to one Ca(3), one Ca(4), one Ca(9), one Y(1), and one Co(3) atom to form distorted OCa3YCo square pyramids that share  a cornercorner with one O(1)Ca2Y2Co square pyramid,  a cornercorner with one O(19)Ca2Y2Co square pyramid,  a cornercorner with one O(12)Ca3YCo square pyramid,  a cornercorner with one O(2)Ca3YCo square pyramid,  a cornercorner with one O(3)Ca3YCo square pyramid,  a cornercorner with one O(7)Ca3YCo square pyramid,  a cornercorner with one O(9)Ca3YCo square pyramid,  a cornercorner with one O(22)Ca4Co square pyramid, corners with two equivalent O(15)Ca2Y2Co square pyramids, corners with two equivalent O(18)Ca4Co square pyramids, corners with two equivalent O(4)Ca4Co square pyramids,  an edgeedge with one O(19)Ca2Y2Co square pyramid,  an edgeedge with one O(12)Ca3YCo square pyramid,  an edgeedge with one O(13)Ca3YCo square pyramid,  an edgeedge with one O(14)Ca3YCo square pyramid,  an edgeedge with one O(22)Ca4Co square pyramid,  a faceface with one O(9)Ca3YCo square pyramid, and  a faceface with one O(8)Ca4Co square pyramid. In the twenty-fourth O site, O(24) is bonded to one Ca(2), one Ca(5), one Ca(8), one Y(2), and one Co(4) atom to form distorted OCa3YCo square pyramids that share  a cornercorner with one O(1)Ca2Y2Co square pyramid,  a cornercorner with one O(11)Ca2Y2Co square pyramid,  a cornercorner with one O(10)Ca3YCo square pyramid,  a cornercorner with one O(2)Ca3YCo square pyramid,  a cornercorner with one O(20)Ca3YCo square pyramid,  a cornercorner with one O(21)Ca3YCo square pyramid,  a cornercorner with one O(4)Ca4Co square pyramid,  a cornercorner with one O(8)Ca4Co square pyramid, corners with two equivalent O(16)Ca3YCo square pyramids, corners with two equivalent O(17)Ca3YCo square pyramids, corners with two equivalent O(3)Ca3YCo square pyramids,  an edgeedge with one O(11)Ca2Y2Co square pyramid,  an edgeedge with one O(13)Ca3YCo square pyramid,  an edgeedge with one O(14)Ca3YCo square pyramid,  an edgeedge with one O(20)Ca3YCo square pyramid,  an edgeedge with one O(21)Ca3YCo square pyramid,  a faceface with one O(10)Ca3YCo square pyramid,  a faceface with one O(6)Ca3YCo square pyramid, and  a faceface with one O(7)Ca3YCo square pyramid.