Cd6(CoO3)5 crystallizes in the triclinic P1 space group. There are five inequivalent Co sites. In the first Co site, Co(1) is bonded to one O(11), one O(12), one O(2), one O(3), one O(8), and one O(9) atom to form CoO6 octahedra that share corners with two equivalent Cd(2)O5 trigonal bipyramids, corners with two equivalent Cd(6)O5 trigonal bipyramids,  an edgeedge with one Cd(1)O5 square pyramid,  an edgeedge with one Cd(5)O5 square pyramid,  a faceface with one Co(2)O6 octahedra, and  a faceface with one Co(4)O6 octahedra. In the second Co site, Co(2) is bonded to one O(11), one O(13), one O(2), one O(5), one O(6), and one O(8) atom to form CoO6 octahedra that share corners with two equivalent Cd(1)O5 square pyramids, corners with two equivalent Cd(5)O5 square pyramids,  an edgeedge with one Cd(2)O5 trigonal bipyramid,  an edgeedge with one Cd(6)O5 trigonal bipyramid,  a faceface with one Co(1)O6 octahedra, and  a faceface with one Co(3)O6 octahedra. In the third Co site, Co(3) is bonded to one O(1), one O(10), one O(13), one O(15), one O(5), and one O(6) atom to form CoO6 octahedra that share corners with two equivalent Cd(2)O5 trigonal bipyramids, corners with two equivalent Cd(6)O5 trigonal bipyramids,  an edgeedge with one Cd(1)O5 square pyramid,  an edgeedge with one Cd(5)O5 square pyramid, and  a faceface with one Co(2)O6 octahedra. In the fourth Co site, Co(4) is bonded to one O(12), one O(14), one O(3), one O(4), one O(7), and one O(9) atom to form CoO6 octahedra that share corners with two equivalent Cd(1)O5 square pyramids, corners with two equivalent Cd(5)O5 square pyramids,  an edgeedge with one Cd(2)O5 trigonal bipyramid,  an edgeedge with one Cd(6)O5 trigonal bipyramid, and  a faceface with one Co(1)O6 octahedra. In the fifth Co site, Co(5) is bonded in a 6-coordinate geometry to one O(1), one O(10), one O(14), one O(15), one O(4), and one O(7) atom. There are six inequivalent Cd sites. In the first Cd site, Cd(1) is bonded to one O(1), one O(13), one O(14), one O(2), and one O(3) atom to form distorted CdO5 square pyramids that share corners with two equivalent Co(2)O6 octahedra, corners with two equivalent Co(4)O6 octahedra, corners with two equivalent Cd(2)O5 trigonal bipyramids, corners with two equivalent Cd(6)O5 trigonal bipyramids,  an edgeedge with one Co(1)O6 octahedra, and  an edgeedge with one Co(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 37-64°. In the second Cd site, Cd(2) is bonded to one O(10), one O(2), one O(3), one O(6), and one O(7) atom to form distorted CdO5 trigonal bipyramids that share corners with two equivalent Co(1)O6 octahedra, corners with two equivalent Co(3)O6 octahedra,  a cornercorner with one Cd(5)O5 square pyramid, corners with two equivalent Cd(1)O5 square pyramids,  an edgeedge with one Co(2)O6 octahedra, and  an edgeedge with one Co(4)O6 octahedra. The corner-sharing octahedral tilt angles range from 32-72°. In the third Cd site, Cd(3) is bonded in a 5-coordinate geometry to one O(12), one O(14), one O(15), one O(5), and one O(8) atom. In the fourth Cd site, Cd(4) is bonded in a 6-coordinate geometry to one O(10), one O(12), one O(15), one O(4), one O(6), and one O(8) atom. In the fifth Cd site, Cd(5) is bonded to one O(11), one O(15), one O(5), one O(7), and one O(9) atom to form distorted CdO5 square pyramids that share corners with two equivalent Co(2)O6 octahedra, corners with two equivalent Co(4)O6 octahedra,  a cornercorner with one Cd(2)O5 trigonal bipyramid, corners with two equivalent Cd(6)O5 trigonal bipyramids,  an edgeedge with one Co(1)O6 octahedra, and  an edgeedge with one Co(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 35-62°. In the sixth Cd site, Cd(6) is bonded to one O(1), one O(11), one O(13), one O(4), and one O(9) atom to form distorted CdO5 trigonal bipyramids that share corners with two equivalent Co(1)O6 octahedra, corners with two equivalent Co(3)O6 octahedra, corners with two equivalent Cd(1)O5 square pyramids, corners with two equivalent Cd(5)O5 square pyramids,  an edgeedge with one Co(2)O6 octahedra, and  an edgeedge with one Co(4)O6 octahedra. The corner-sharing octahedral tilt angles range from 35-73°. There are fifteen inequivalent O sites. In the first O site, O(1) is bonded in a distorted see-saw-like geometry to one Co(3), one Co(5), one Cd(1), and one Cd(6) atom. In the second O site, O(2) is bonded in a 4-coordinate geometry to one Co(1), one Co(2), one Cd(1), and one Cd(2) atom. In the third O site, O(3) is bonded in a 4-coordinate geometry to one Co(1), one Co(4), one Cd(1), and one Cd(2) atom. In the fourth O site, O(4) is bonded in a distorted see-saw-like geometry to one Co(4), one Co(5), one Cd(4), and one Cd(6) atom. In the fifth O site, O(5) is bonded in a 4-coordinate geometry to one Co(2), one Co(3), one Cd(3), and one Cd(5) atom. In the sixth O site, O(6) is bonded in a 4-coordinate geometry to one Co(2), one Co(3), one Cd(2), and one Cd(4) atom. In the seventh O site, O(7) is bonded to one Co(4), one Co(5), one Cd(2), and one Cd(5) atom to form distorted edge-sharing OCd2Co2 tetrahedra. In the eighth O site, O(8) is bonded in a 4-coordinate geometry to one Co(1), one Co(2), one Cd(3), and one Cd(4) atom. In the ninth O site, O(9) is bonded in a 4-coordinate geometry to one Co(1), one Co(4), one Cd(5), and one Cd(6) atom. In the tenth O site, O(10) is bonded in a distorted see-saw-like geometry to one Co(3), one Co(5), one Cd(2), and one Cd(4) atom. In the eleventh O site, O(11) is bonded in a 4-coordinate geometry to one Co(1), one Co(2), one Cd(5), and one Cd(6) atom. In the twelfth O site, O(12) is bonded in a 4-coordinate geometry to one Co(1), one Co(4), one Cd(3), and one Cd(4) atom. In the thirteenth O site, O(13) is bonded in a 4-coordinate geometry to one Co(2), one Co(3), one Cd(1), and one Cd(6) atom. In the fourteenth O site, O(14) is bonded to one Co(4), one Co(5), one Cd(1), and one Cd(3) atom to form distorted edge-sharing OCd2Co2 tetrahedra. In the fifteenth O site, O(15) is bonded in a 5-coordinate geometry to one Co(3), one Co(5), one Cd(3), one Cd(4), and one Cd(5) atom.
Cd6(CoO3)5 crystallizes in the triclinic P1 space group. There are five inequivalent Co sites. In the first Co site, Co(1) is bonded to one O(11), one O(12), one O(2), one O(3), one O(8), and one O(9) atom to form CoO6 octahedra that share corners with two equivalent Cd(2)O5 trigonal bipyramids, corners with two equivalent Cd(6)O5 trigonal bipyramids,  an edgeedge with one Cd(1)O5 square pyramid,  an edgeedge with one Cd(5)O5 square pyramid,  a faceface with one Co(2)O6 octahedra, and  a faceface with one Co(4)O6 octahedra. The Co(1)-O(11) bond length is 1.89 Å. The Co(1)-O(12) bond length is 1.88 Å. The Co(1)-O(2) bond length is 1.94 Å. The Co(1)-O(3) bond length is 1.87 Å. The Co(1)-O(8) bond length is 1.90 Å. The Co(1)-O(9) bond length is 1.83 Å. In the second Co site, Co(2) is bonded to one O(11), one O(13), one O(2), one O(5), one O(6), and one O(8) atom to form CoO6 octahedra that share corners with two equivalent Cd(1)O5 square pyramids, corners with two equivalent Cd(5)O5 square pyramids,  an edgeedge with one Cd(2)O5 trigonal bipyramid,  an edgeedge with one Cd(6)O5 trigonal bipyramid,  a faceface with one Co(1)O6 octahedra, and  a faceface with one Co(3)O6 octahedra. The Co(2)-O(11) bond length is 1.89 Å. The Co(2)-O(13) bond length is 1.85 Å. The Co(2)-O(2) bond length is 1.91 Å. The Co(2)-O(5) bond length is 1.90 Å. The Co(2)-O(6) bond length is 1.88 Å. The Co(2)-O(8) bond length is 1.89 Å. In the third Co site, Co(3) is bonded to one O(1), one O(10), one O(13), one O(15), one O(5), and one O(6) atom to form CoO6 octahedra that share corners with two equivalent Cd(2)O5 trigonal bipyramids, corners with two equivalent Cd(6)O5 trigonal bipyramids,  an edgeedge with one Cd(1)O5 square pyramid,  an edgeedge with one Cd(5)O5 square pyramid, and  a faceface with one Co(2)O6 octahedra. The Co(3)-O(1) bond length is 1.88 Å. The Co(3)-O(10) bond length is 1.88 Å. The Co(3)-O(13) bond length is 2.17 Å. The Co(3)-O(15) bond length is 2.14 Å. The Co(3)-O(5) bond length is 1.96 Å. The Co(3)-O(6) bond length is 1.94 Å. In the fourth Co site, Co(4) is bonded to one O(12), one O(14), one O(3), one O(4), one O(7), and one O(9) atom to form CoO6 octahedra that share corners with two equivalent Cd(1)O5 square pyramids, corners with two equivalent Cd(5)O5 square pyramids,  an edgeedge with one Cd(2)O5 trigonal bipyramid,  an edgeedge with one Cd(6)O5 trigonal bipyramid, and  a faceface with one Co(1)O6 octahedra. The Co(4)-O(12) bond length is 1.90 Å. The Co(4)-O(14) bond length is 1.89 Å. The Co(4)-O(3) bond length is 1.88 Å. The Co(4)-O(4) bond length is 1.84 Å. The Co(4)-O(7) bond length is 1.92 Å. The Co(4)-O(9) bond length is 1.93 Å. In the fifth Co site, Co(5) is bonded in a 6-coordinate geometry to one O(1), one O(10), one O(14), one O(15), one O(4), and one O(7) atom. The Co(5)-O(1) bond length is 2.07 Å. The Co(5)-O(10) bond length is 2.13 Å. The Co(5)-O(14) bond length is 2.14 Å. The Co(5)-O(15) bond length is 1.89 Å. The Co(5)-O(4) bond length is 2.17 Å. The Co(5)-O(7) bond length is 2.00 Å. There are six inequivalent Cd sites. In the first Cd site, Cd(1) is bonded to one O(1), one O(13), one O(14), one O(2), and one O(3) atom to form distorted CdO5 square pyramids that share corners with two equivalent Co(2)O6 octahedra, corners with two equivalent Co(4)O6 octahedra, corners with two equivalent Cd(2)O5 trigonal bipyramids, corners with two equivalent Cd(6)O5 trigonal bipyramids,  an edgeedge with one Co(1)O6 octahedra, and  an edgeedge with one Co(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 37-64°. The Cd(1)-O(1) bond length is 2.48 Å. The Cd(1)-O(13) bond length is 2.22 Å. The Cd(1)-O(14) bond length is 2.21 Å. The Cd(1)-O(2) bond length is 2.31 Å. The Cd(1)-O(3) bond length is 2.42 Å. In the second Cd site, Cd(2) is bonded to one O(10), one O(2), one O(3), one O(6), and one O(7) atom to form distorted CdO5 trigonal bipyramids that share corners with two equivalent Co(1)O6 octahedra, corners with two equivalent Co(3)O6 octahedra,  a cornercorner with one Cd(5)O5 square pyramid, corners with two equivalent Cd(1)O5 square pyramids,  an edgeedge with one Co(2)O6 octahedra, and  an edgeedge with one Co(4)O6 octahedra. The corner-sharing octahedral tilt angles range from 32-72°. The Cd(2)-O(10) bond length is 2.27 Å. The Cd(2)-O(2) bond length is 2.24 Å. The Cd(2)-O(3) bond length is 2.30 Å. The Cd(2)-O(6) bond length is 2.48 Å. The Cd(2)-O(7) bond length is 2.38 Å. In the third Cd site, Cd(3) is bonded in a 5-coordinate geometry to one O(12), one O(14), one O(15), one O(5), and one O(8) atom. The Cd(3)-O(12) bond length is 2.26 Å. The Cd(3)-O(14) bond length is 2.41 Å. The Cd(3)-O(15) bond length is 2.29 Å. The Cd(3)-O(5) bond length is 2.48 Å. The Cd(3)-O(8) bond length is 2.22 Å. In the fourth Cd site, Cd(4) is bonded in a 6-coordinate geometry to one O(10), one O(12), one O(15), one O(4), one O(6), and one O(8) atom. The Cd(4)-O(10) bond length is 2.46 Å. The Cd(4)-O(12) bond length is 2.35 Å. The Cd(4)-O(15) bond length is 2.72 Å. The Cd(4)-O(4) bond length is 2.24 Å. The Cd(4)-O(6) bond length is 2.25 Å. The Cd(4)-O(8) bond length is 2.36 Å. In the fifth Cd site, Cd(5) is bonded to one O(11), one O(15), one O(5), one O(7), and one O(9) atom to form distorted CdO5 square pyramids that share corners with two equivalent Co(2)O6 octahedra, corners with two equivalent Co(4)O6 octahedra,  a cornercorner with one Cd(2)O5 trigonal bipyramid, corners with two equivalent Cd(6)O5 trigonal bipyramids,  an edgeedge with one Co(1)O6 octahedra, and  an edgeedge with one Co(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 35-62°. The Cd(5)-O(11) bond length is 2.28 Å. The Cd(5)-O(15) bond length is 2.59 Å. The Cd(5)-O(5) bond length is 2.27 Å. The Cd(5)-O(7) bond length is 2.24 Å. The Cd(5)-O(9) bond length is 2.39 Å. In the sixth Cd site, Cd(6) is bonded to one O(1), one O(11), one O(13), one O(4), and one O(9) atom to form distorted CdO5 trigonal bipyramids that share corners with two equivalent Co(1)O6 octahedra, corners with two equivalent Co(3)O6 octahedra, corners with two equivalent Cd(1)O5 square pyramids, corners with two equivalent Cd(5)O5 square pyramids,  an edgeedge with one Co(2)O6 octahedra, and  an edgeedge with one Co(4)O6 octahedra. The corner-sharing octahedral tilt angles range from 35-73°. The Cd(6)-O(1) bond length is 2.27 Å. The Cd(6)-O(11) bond length is 2.26 Å. The Cd(6)-O(13) bond length is 2.32 Å. The Cd(6)-O(4) bond length is 2.33 Å. The Cd(6)-O(9) bond length is 2.30 Å. There are fifteen inequivalent O sites. In the first O site, O(1) is bonded in a distorted see-saw-like geometry to one Co(3), one Co(5), one Cd(1), and one Cd(6) atom. In the second O site, O(2) is bonded in a 4-coordinate geometry to one Co(1), one Co(2), one Cd(1), and one Cd(2) atom. In the third O site, O(3) is bonded in a 4-coordinate geometry to one Co(1), one Co(4), one Cd(1), and one Cd(2) atom. In the fourth O site, O(4) is bonded in a distorted see-saw-like geometry to one Co(4), one Co(5), one Cd(4), and one Cd(6) atom. In the fifth O site, O(5) is bonded in a 4-coordinate geometry to one Co(2), one Co(3), one Cd(3), and one Cd(5) atom. In the sixth O site, O(6) is bonded in a 4-coordinate geometry to one Co(2), one Co(3), one Cd(2), and one Cd(4) atom. In the seventh O site, O(7) is bonded to one Co(4), one Co(5), one Cd(2), and one Cd(5) atom to form distorted edge-sharing OCd2Co2 tetrahedra. In the eighth O site, O(8) is bonded in a 4-coordinate geometry to one Co(1), one Co(2), one Cd(3), and one Cd(4) atom. In the ninth O site, O(9) is bonded in a 4-coordinate geometry to one Co(1), one Co(4), one Cd(5), and one Cd(6) atom. In the tenth O site, O(10) is bonded in a distorted see-saw-like geometry to one Co(3), one Co(5), one Cd(2), and one Cd(4) atom. In the eleventh O site, O(11) is bonded in a 4-coordinate geometry to one Co(1), one Co(2), one Cd(5), and one Cd(6) atom. In the twelfth O site, O(12) is bonded in a 4-coordinate geometry to one Co(1), one Co(4), one Cd(3), and one Cd(4) atom. In the thirteenth O site, O(13) is bonded in a 4-coordinate geometry to one Co(2), one Co(3), one Cd(1), and one Cd(6) atom. In the fourteenth O site, O(14) is bonded to one Co(4), one Co(5), one Cd(1), and one Cd(3) atom to form distorted edge-sharing OCd2Co2 tetrahedra. In the fifteenth O site, O(15) is bonded in a 5-coordinate geometry to one Co(3), one Co(5), one Cd(3), one Cd(4), and one Cd(5) atom.