Ba6Co5Zn(SiO4)6 crystallizes in the triclinic P1 space group. There are six inequivalent Ba sites. In the first Ba site, Ba(1) is bonded in a 6-coordinate geometry to one O(10), one O(12), one O(13), one O(15), one O(17), and one O(8) atom. In the second Ba site, Ba(2) is bonded in a 6-coordinate geometry to one O(11), one O(14), one O(16), one O(18), one O(7), and one O(9) atom. In the third Ba site, Ba(3) is bonded in a distorted q6 geometry to one O(11), one O(14), one O(16), one O(18), one O(20), one O(22), one O(24), one O(7), and one O(9) atom. In the fourth Ba site, Ba(4) is bonded in a distorted q6 geometry to one O(10), one O(12), one O(13), one O(15), one O(17), one O(19), one O(21), one O(23), and one O(8) atom. In the fifth Ba site, Ba(5) is bonded in a 9-coordinate geometry to one O(1), one O(2), one O(20), one O(22), one O(24), one O(3), one O(4), one O(5), and one O(6) atom. In the sixth Ba site, Ba(6) is bonded in a 9-coordinate geometry to one O(1), one O(19), one O(2), one O(21), one O(23), one O(3), one O(4), one O(5), and one O(6) atom. There are five inequivalent Co sites. In the first Co site, Co(1) is bonded to one O(12), one O(16), one O(2), and one O(20) atom to form CoO4 tetrahedra that share  a cornercorner with one Si(2)O4 tetrahedra,  a cornercorner with one Si(3)O4 tetrahedra,  a cornercorner with one Si(4)O4 tetrahedra, and  a cornercorner with one Si(6)O4 tetrahedra. In the second Co site, Co(2) is bonded to one O(17), one O(21), one O(3), and one O(7) atom to form CoO4 tetrahedra that share  a cornercorner with one Si(1)O4 tetrahedra,  a cornercorner with one Si(3)O4 tetrahedra,  a cornercorner with one Si(4)O4 tetrahedra, and  a cornercorner with one Si(5)O4 tetrahedra. In the third Co site, Co(3) is bonded to one O(18), one O(22), one O(4), and one O(8) atom to form CoO4 tetrahedra that share  a cornercorner with one Si(2)O4 tetrahedra,  a cornercorner with one Si(4)O4 tetrahedra,  a cornercorner with one Si(5)O4 tetrahedra, and  a cornercorner with one Si(6)O4 tetrahedra. In the fourth Co site, Co(4) is bonded to one O(13), one O(23), one O(5), and one O(9) atom to form CoO4 tetrahedra that share  a cornercorner with one Si(1)O4 tetrahedra,  a cornercorner with one Si(3)O4 tetrahedra,  a cornercorner with one Si(5)O4 tetrahedra, and  a cornercorner with one Si(6)O4 tetrahedra. In the fifth Co site, Co(5) is bonded to one O(10), one O(14), one O(24), and one O(6) atom to form CoO4 tetrahedra that share  a cornercorner with one Si(1)O4 tetrahedra,  a cornercorner with one Si(2)O4 tetrahedra,  a cornercorner with one Si(4)O4 tetrahedra, and  a cornercorner with one Si(6)O4 tetrahedra. Zn(1) is bonded to one O(1), one O(11), one O(15), and one O(19) atom to form ZnO4 tetrahedra that share  a cornercorner with one Si(1)O4 tetrahedra,  a cornercorner with one Si(2)O4 tetrahedra,  a cornercorner with one Si(3)O4 tetrahedra, and  a cornercorner with one Si(5)O4 tetrahedra. There are six inequivalent Si sites. In the first Si site, Si(1) is bonded to one O(1), one O(13), one O(24), and one O(7) atom to form SiO4 tetrahedra that share  a cornercorner with one Co(2)O4 tetrahedra,  a cornercorner with one Co(4)O4 tetrahedra,  a cornercorner with one Co(5)O4 tetrahedra, and  a cornercorner with one Zn(1)O4 tetrahedra. In the second Si site, Si(2) is bonded to one O(14), one O(19), one O(2), and one O(8) atom to form SiO4 tetrahedra that share  a cornercorner with one Co(1)O4 tetrahedra,  a cornercorner with one Co(3)O4 tetrahedra,  a cornercorner with one Co(5)O4 tetrahedra, and  a cornercorner with one Zn(1)O4 tetrahedra. In the third Si site, Si(3) is bonded to one O(15), one O(20), one O(3), and one O(9) atom to form SiO4 tetrahedra that share  a cornercorner with one Co(1)O4 tetrahedra,  a cornercorner with one Co(2)O4 tetrahedra,  a cornercorner with one Co(4)O4 tetrahedra, and  a cornercorner with one Zn(1)O4 tetrahedra. In the fourth Si site, Si(4) is bonded to one O(10), one O(16), one O(21), and one O(4) atom to form SiO4 tetrahedra that share  a cornercorner with one Co(1)O4 tetrahedra,  a cornercorner with one Co(2)O4 tetrahedra,  a cornercorner with one Co(3)O4 tetrahedra, and  a cornercorner with one Co(5)O4 tetrahedra. In the fifth Si site, Si(5) is bonded to one O(11), one O(17), one O(22), and one O(5) atom to form SiO4 tetrahedra that share  a cornercorner with one Co(2)O4 tetrahedra,  a cornercorner with one Co(3)O4 tetrahedra,  a cornercorner with one Co(4)O4 tetrahedra, and  a cornercorner with one Zn(1)O4 tetrahedra. In the sixth Si site, Si(6) is bonded to one O(12), one O(18), one O(23), and one O(6) atom to form SiO4 tetrahedra that share  a cornercorner with one Co(1)O4 tetrahedra,  a cornercorner with one Co(3)O4 tetrahedra,  a cornercorner with one Co(4)O4 tetrahedra, and  a cornercorner with one Co(5)O4 tetrahedra. There are twenty-four inequivalent O sites. In the first O site, O(1) is bonded in a 2-coordinate geometry to one Ba(5), one Ba(6), one Zn(1), and one Si(1) atom. In the second O site, O(2) is bonded in a 2-coordinate geometry to one Ba(5), one Ba(6), one Co(1), and one Si(2) atom. In the third O site, O(3) is bonded in a 2-coordinate geometry to one Ba(5), one Ba(6), one Co(2), and one Si(3) atom. In the fourth O site, O(4) is bonded in a 2-coordinate geometry to one Ba(5), one Ba(6), one Co(3), and one Si(4) atom. In the fifth O site, O(5) is bonded in a 2-coordinate geometry to one Ba(5), one Ba(6), one Co(4), and one Si(5) atom. In the sixth O site, O(6) is bonded in a 2-coordinate geometry to one Ba(5), one Ba(6), one Co(5), and one Si(6) atom. In the seventh O site, O(7) is bonded in a 4-coordinate geometry to one Ba(2), one Ba(3), one Co(2), and one Si(1) atom. In the eighth O site, O(8) is bonded in a 4-coordinate geometry to one Ba(1), one Ba(4), one Co(3), and one Si(2) atom. In the ninth O site, O(9) is bonded in a 4-coordinate geometry to one Ba(2), one Ba(3), one Co(4), and one Si(3) atom. In the tenth O site, O(10) is bonded in a 4-coordinate geometry to one Ba(1), one Ba(4), one Co(5), and one Si(4) atom. In the eleventh O site, O(11) is bonded in a 4-coordinate geometry to one Ba(2), one Ba(3), one Zn(1), and one Si(5) atom. In the twelfth O site, O(12) is bonded in a 4-coordinate geometry to one Ba(1), one Ba(4), one Co(1), and one Si(6) atom. In the thirteenth O site, O(13) is bonded in a 4-coordinate geometry to one Ba(1), one Ba(4), one Co(4), and one Si(1) atom. In the fourteenth O site, O(14) is bonded in a 4-coordinate geometry to one Ba(2), one Ba(3), one Co(5), and one Si(2) atom. In the fifteenth O site, O(15) is bonded in a 4-coordinate geometry to one Ba(1), one Ba(4), one Zn(1), and one Si(3) atom. In the sixteenth O site, O(16) is bonded in a 4-coordinate geometry to one Ba(2), one Ba(3), one Co(1), and one Si(4) atom. In the seventeenth O site, O(17) is bonded in a 4-coordinate geometry to one Ba(1), one Ba(4), one Co(2), and one Si(5) atom. In the eighteenth O site, O(18) is bonded in a 4-coordinate geometry to one Ba(2), one Ba(3), one Co(3), and one Si(6) atom. In the nineteenth O site, O(19) is bonded in a 2-coordinate geometry to one Ba(4), one Ba(6), one Zn(1), and one Si(2) atom. In the twentieth O site, O(20) is bonded in a 4-coordinate geometry to one Ba(3), one Ba(5), one Co(1), and one Si(3) atom. In the twenty-first O site, O(21) is bonded in a 4-coordinate geometry to one Ba(4), one Ba(6), one Co(2), and one Si(4) atom. In the twenty-second O site, O(22) is bonded in a 4-coordinate geometry to one Ba(3), one Ba(5), one Co(3), and one Si(5) atom. In the twenty-third O site, O(23) is bonded in a 4-coordinate geometry to one Ba(4), one Ba(6), one Co(4), and one Si(6) atom. In the twenty-fourth O site, O(24) is bonded in a 2-coordinate geometry to one Ba(3), one Ba(5), one Co(5), and one Si(1) atom.
Ba6Co5Zn(SiO4)6 crystallizes in the triclinic P1 space group. There are six inequivalent Ba sites. In the first Ba site, Ba(1) is bonded in a 6-coordinate geometry to one O(10), one O(12), one O(13), one O(15), one O(17), and one O(8) atom. The Ba(1)-O(10) bond length is 2.80 Å. The Ba(1)-O(12) bond length is 2.80 Å. The Ba(1)-O(13) bond length is 2.75 Å. The Ba(1)-O(15) bond length is 2.76 Å. The Ba(1)-O(17) bond length is 2.75 Å. The Ba(1)-O(8) bond length is 2.80 Å. In the second Ba site, Ba(2) is bonded in a 6-coordinate geometry to one O(11), one O(14), one O(16), one O(18), one O(7), and one O(9) atom. The Ba(2)-O(11) bond length is 2.79 Å. The Ba(2)-O(14) bond length is 2.74 Å. The Ba(2)-O(16) bond length is 2.75 Å. The Ba(2)-O(18) bond length is 2.75 Å. The Ba(2)-O(7) bond length is 2.80 Å. The Ba(2)-O(9) bond length is 2.80 Å. In the third Ba site, Ba(3) is bonded in a distorted q6 geometry to one O(11), one O(14), one O(16), one O(18), one O(20), one O(22), one O(24), one O(7), and one O(9) atom. The Ba(3)-O(11) bond length is 2.99 Å. The Ba(3)-O(14) bond length is 3.10 Å. The Ba(3)-O(16) bond length is 3.09 Å. The Ba(3)-O(18) bond length is 3.09 Å. The Ba(3)-O(20) bond length is 2.76 Å. The Ba(3)-O(22) bond length is 2.76 Å. The Ba(3)-O(24) bond length is 2.76 Å. The Ba(3)-O(7) bond length is 2.98 Å. The Ba(3)-O(9) bond length is 2.98 Å. In the fourth Ba site, Ba(4) is bonded in a distorted q6 geometry to one O(10), one O(12), one O(13), one O(15), one O(17), one O(19), one O(21), one O(23), and one O(8) atom. The Ba(4)-O(10) bond length is 2.99 Å. The Ba(4)-O(12) bond length is 2.98 Å. The Ba(4)-O(13) bond length is 3.10 Å. The Ba(4)-O(15) bond length is 3.09 Å. The Ba(4)-O(17) bond length is 3.09 Å. The Ba(4)-O(19) bond length is 2.75 Å. The Ba(4)-O(21) bond length is 2.77 Å. The Ba(4)-O(23) bond length is 2.77 Å. The Ba(4)-O(8) bond length is 2.98 Å. In the fifth Ba site, Ba(5) is bonded in a 9-coordinate geometry to one O(1), one O(2), one O(20), one O(22), one O(24), one O(3), one O(4), one O(5), and one O(6) atom. The Ba(5)-O(1) bond length is 3.08 Å. The Ba(5)-O(2) bond length is 2.77 Å. The Ba(5)-O(20) bond length is 2.93 Å. The Ba(5)-O(22) bond length is 2.94 Å. The Ba(5)-O(24) bond length is 2.94 Å. The Ba(5)-O(3) bond length is 3.09 Å. The Ba(5)-O(4) bond length is 2.76 Å. The Ba(5)-O(5) bond length is 3.09 Å. The Ba(5)-O(6) bond length is 2.76 Å. In the sixth Ba site, Ba(6) is bonded in a 9-coordinate geometry to one O(1), one O(19), one O(2), one O(21), one O(23), one O(3), one O(4), one O(5), and one O(6) atom. The Ba(6)-O(1) bond length is 2.76 Å. The Ba(6)-O(19) bond length is 2.93 Å. The Ba(6)-O(2) bond length is 3.09 Å. The Ba(6)-O(21) bond length is 2.93 Å. The Ba(6)-O(23) bond length is 2.94 Å. The Ba(6)-O(3) bond length is 2.76 Å. The Ba(6)-O(4) bond length is 3.10 Å. The Ba(6)-O(5) bond length is 2.77 Å. The Ba(6)-O(6) bond length is 3.10 Å. There are five inequivalent Co sites. In the first Co site, Co(1) is bonded to one O(12), one O(16), one O(2), and one O(20) atom to form CoO4 tetrahedra that share  a cornercorner with one Si(2)O4 tetrahedra,  a cornercorner with one Si(3)O4 tetrahedra,  a cornercorner with one Si(4)O4 tetrahedra, and  a cornercorner with one Si(6)O4 tetrahedra. The Co(1)-O(12) bond length is 1.98 Å. The Co(1)-O(16) bond length is 1.98 Å. The Co(1)-O(2) bond length is 1.97 Å. The Co(1)-O(20) bond length is 1.98 Å. In the second Co site, Co(2) is bonded to one O(17), one O(21), one O(3), and one O(7) atom to form CoO4 tetrahedra that share  a cornercorner with one Si(1)O4 tetrahedra,  a cornercorner with one Si(3)O4 tetrahedra,  a cornercorner with one Si(4)O4 tetrahedra, and  a cornercorner with one Si(5)O4 tetrahedra. The Co(2)-O(17) bond length is 1.98 Å. The Co(2)-O(21) bond length is 1.97 Å. The Co(2)-O(3) bond length is 1.97 Å. The Co(2)-O(7) bond length is 1.98 Å. In the third Co site, Co(3) is bonded to one O(18), one O(22), one O(4), and one O(8) atom to form CoO4 tetrahedra that share  a cornercorner with one Si(2)O4 tetrahedra,  a cornercorner with one Si(4)O4 tetrahedra,  a cornercorner with one Si(5)O4 tetrahedra, and  a cornercorner with one Si(6)O4 tetrahedra. The Co(3)-O(18) bond length is 1.98 Å. The Co(3)-O(22) bond length is 1.98 Å. The Co(3)-O(4) bond length is 1.97 Å. The Co(3)-O(8) bond length is 1.98 Å. In the fourth Co site, Co(4) is bonded to one O(13), one O(23), one O(5), and one O(9) atom to form CoO4 tetrahedra that share  a cornercorner with one Si(1)O4 tetrahedra,  a cornercorner with one Si(3)O4 tetrahedra,  a cornercorner with one Si(5)O4 tetrahedra, and  a cornercorner with one Si(6)O4 tetrahedra. The Co(4)-O(13) bond length is 1.98 Å. The Co(4)-O(23) bond length is 1.97 Å. The Co(4)-O(5) bond length is 1.97 Å. The Co(4)-O(9) bond length is 1.98 Å. In the fifth Co site, Co(5) is bonded to one O(10), one O(14), one O(24), and one O(6) atom to form CoO4 tetrahedra that share  a cornercorner with one Si(1)O4 tetrahedra,  a cornercorner with one Si(2)O4 tetrahedra,  a cornercorner with one Si(4)O4 tetrahedra, and  a cornercorner with one Si(6)O4 tetrahedra. The Co(5)-O(10) bond length is 1.98 Å. The Co(5)-O(14) bond length is 1.98 Å. The Co(5)-O(24) bond length is 1.97 Å. The Co(5)-O(6) bond length is 1.97 Å. Zn(1) is bonded to one O(1), one O(11), one O(15), and one O(19) atom to form ZnO4 tetrahedra that share  a cornercorner with one Si(1)O4 tetrahedra,  a cornercorner with one Si(2)O4 tetrahedra,  a cornercorner with one Si(3)O4 tetrahedra, and  a cornercorner with one Si(5)O4 tetrahedra. The Zn(1)-O(1) bond length is 1.97 Å. The Zn(1)-O(11) bond length is 1.97 Å. The Zn(1)-O(15) bond length is 1.97 Å. The Zn(1)-O(19) bond length is 2.00 Å. There are six inequivalent Si sites. In the first Si site, Si(1) is bonded to one O(1), one O(13), one O(24), and one O(7) atom to form SiO4 tetrahedra that share  a cornercorner with one Co(2)O4 tetrahedra,  a cornercorner with one Co(4)O4 tetrahedra,  a cornercorner with one Co(5)O4 tetrahedra, and  a cornercorner with one Zn(1)O4 tetrahedra. The Si(1)-O(1) bond length is 1.66 Å. The Si(1)-O(13) bond length is 1.65 Å. The Si(1)-O(24) bond length is 1.65 Å. The Si(1)-O(7) bond length is 1.65 Å. In the second Si site, Si(2) is bonded to one O(14), one O(19), one O(2), and one O(8) atom to form SiO4 tetrahedra that share  a cornercorner with one Co(1)O4 tetrahedra,  a cornercorner with one Co(3)O4 tetrahedra,  a cornercorner with one Co(5)O4 tetrahedra, and  a cornercorner with one Zn(1)O4 tetrahedra. The Si(2)-O(14) bond length is 1.65 Å. The Si(2)-O(19) bond length is 1.65 Å. The Si(2)-O(2) bond length is 1.65 Å. The Si(2)-O(8) bond length is 1.65 Å. In the third Si site, Si(3) is bonded to one O(15), one O(20), one O(3), and one O(9) atom to form SiO4 tetrahedra that share  a cornercorner with one Co(1)O4 tetrahedra,  a cornercorner with one Co(2)O4 tetrahedra,  a cornercorner with one Co(4)O4 tetrahedra, and  a cornercorner with one Zn(1)O4 tetrahedra. The Si(3)-O(15) bond length is 1.65 Å. The Si(3)-O(20) bond length is 1.65 Å. The Si(3)-O(3) bond length is 1.65 Å. The Si(3)-O(9) bond length is 1.65 Å. In the fourth Si site, Si(4) is bonded to one O(10), one O(16), one O(21), and one O(4) atom to form SiO4 tetrahedra that share  a cornercorner with one Co(1)O4 tetrahedra,  a cornercorner with one Co(2)O4 tetrahedra,  a cornercorner with one Co(3)O4 tetrahedra, and  a cornercorner with one Co(5)O4 tetrahedra. The Si(4)-O(10) bond length is 1.65 Å. The Si(4)-O(16) bond length is 1.65 Å. The Si(4)-O(21) bond length is 1.65 Å. The Si(4)-O(4) bond length is 1.65 Å. In the fifth Si site, Si(5) is bonded to one O(11), one O(17), one O(22), and one O(5) atom to form SiO4 tetrahedra that share  a cornercorner with one Co(2)O4 tetrahedra,  a cornercorner with one Co(3)O4 tetrahedra,  a cornercorner with one Co(4)O4 tetrahedra, and  a cornercorner with one Zn(1)O4 tetrahedra. The Si(5)-O(11) bond length is 1.65 Å. The Si(5)-O(17) bond length is 1.65 Å. The Si(5)-O(22) bond length is 1.65 Å. The Si(5)-O(5) bond length is 1.65 Å. In the sixth Si site, Si(6) is bonded to one O(12), one O(18), one O(23), and one O(6) atom to form SiO4 tetrahedra that share  a cornercorner with one Co(1)O4 tetrahedra,  a cornercorner with one Co(3)O4 tetrahedra,  a cornercorner with one Co(4)O4 tetrahedra, and  a cornercorner with one Co(5)O4 tetrahedra. The Si(6)-O(12) bond length is 1.65 Å. The Si(6)-O(18) bond length is 1.65 Å. The Si(6)-O(23) bond length is 1.65 Å. The Si(6)-O(6) bond length is 1.65 Å. There are twenty-four inequivalent O sites. In the first O site, O(1) is bonded in a 2-coordinate geometry to one Ba(5), one Ba(6), one Zn(1), and one Si(1) atom. In the second O site, O(2) is bonded in a 2-coordinate geometry to one Ba(5), one Ba(6), one Co(1), and one Si(2) atom. In the third O site, O(3) is bonded in a 2-coordinate geometry to one Ba(5), one Ba(6), one Co(2), and one Si(3) atom. In the fourth O site, O(4) is bonded in a 2-coordinate geometry to one Ba(5), one Ba(6), one Co(3), and one Si(4) atom. In the fifth O site, O(5) is bonded in a 2-coordinate geometry to one Ba(5), one Ba(6), one Co(4), and one Si(5) atom. In the sixth O site, O(6) is bonded in a 2-coordinate geometry to one Ba(5), one Ba(6), one Co(5), and one Si(6) atom. In the seventh O site, O(7) is bonded in a 4-coordinate geometry to one Ba(2), one Ba(3), one Co(2), and one Si(1) atom. In the eighth O site, O(8) is bonded in a 4-coordinate geometry to one Ba(1), one Ba(4), one Co(3), and one Si(2) atom. In the ninth O site, O(9) is bonded in a 4-coordinate geometry to one Ba(2), one Ba(3), one Co(4), and one Si(3) atom. In the tenth O site, O(10) is bonded in a 4-coordinate geometry to one Ba(1), one Ba(4), one Co(5), and one Si(4) atom. In the eleventh O site, O(11) is bonded in a 4-coordinate geometry to one Ba(2), one Ba(3), one Zn(1), and one Si(5) atom. In the twelfth O site, O(12) is bonded in a 4-coordinate geometry to one Ba(1), one Ba(4), one Co(1), and one Si(6) atom. In the thirteenth O site, O(13) is bonded in a 4-coordinate geometry to one Ba(1), one Ba(4), one Co(4), and one Si(1) atom. In the fourteenth O site, O(14) is bonded in a 4-coordinate geometry to one Ba(2), one Ba(3), one Co(5), and one Si(2) atom. In the fifteenth O site, O(15) is bonded in a 4-coordinate geometry to one Ba(1), one Ba(4), one Zn(1), and one Si(3) atom. In the sixteenth O site, O(16) is bonded in a 4-coordinate geometry to one Ba(2), one Ba(3), one Co(1), and one Si(4) atom. In the seventeenth O site, O(17) is bonded in a 4-coordinate geometry to one Ba(1), one Ba(4), one Co(2), and one Si(5) atom. In the eighteenth O site, O(18) is bonded in a 4-coordinate geometry to one Ba(2), one Ba(3), one Co(3), and one Si(6) atom. In the nineteenth O site, O(19) is bonded in a 2-coordinate geometry to one Ba(4), one Ba(6), one Zn(1), and one Si(2) atom. In the twentieth O site, O(20) is bonded in a 4-coordinate geometry to one Ba(3), one Ba(5), one Co(1), and one Si(3) atom. In the twenty-first O site, O(21) is bonded in a 4-coordinate geometry to one Ba(4), one Ba(6), one Co(2), and one Si(4) atom. In the twenty-second O site, O(22) is bonded in a 4-coordinate geometry to one Ba(3), one Ba(5), one Co(3), and one Si(5) atom. In the twenty-third O site, O(23) is bonded in a 4-coordinate geometry to one Ba(4), one Ba(6), one Co(4), and one Si(6) atom. In the twenty-fourth O site, O(24) is bonded in a 2-coordinate geometry to one Ba(3), one Ba(5), one Co(5), and one Si(1) atom.