CaMn9CdO10 crystallizes in the triclinic P1 space group. Ca(1) is bonded in a 5-coordinate geometry to one O(10), one O(2), one O(3), one O(4), and one O(9) atom. There are nine inequivalent Mn sites. In the first Mn site, Mn(1) is bonded in a 6-coordinate geometry to one O(10), one O(2), one O(3), one O(5), one O(8), and one O(9) atom. In the second Mn site, Mn(2) is bonded to one O(3), one O(5), one O(7), and one O(8) atom to form MnO4 trigonal pyramids that share  a cornercorner with one Mn(6)O5 square pyramid,  a cornercorner with one Mn(9)O4 tetrahedra, corners with two equivalent Mn(3)O4 tetrahedra,  an edgeedge with one Mn(8)O6 octahedra, and  an edgeedge with one Mn(6)O5 square pyramid. In the third Mn site, Mn(3) is bonded to one O(1), one O(5), one O(6), and one O(8) atom to form distorted MnO4 tetrahedra that share  a cornercorner with one Mn(8)O6 octahedra, corners with two equivalent Mn(6)O5 square pyramids, corners with two equivalent Mn(9)O4 tetrahedra, and corners with two equivalent Mn(2)O4 trigonal pyramids. The corner-sharing octahedral tilt angles are 11°. In the fourth Mn site, Mn(4) is bonded in a distorted trigonal non-coplanar geometry to one O(10), one O(6), and one O(7) atom. In the fifth Mn site, Mn(5) is bonded in a 5-coordinate geometry to one O(1), one O(2), one O(3), one O(5), and one O(8) atom. In the sixth Mn site, Mn(6) is bonded to one O(2), one O(3), one O(5), one O(8), and one O(9) atom to form MnO5 square pyramids that share corners with two equivalent Mn(3)O4 tetrahedra,  a cornercorner with one Mn(2)O4 trigonal pyramid, edges with two equivalent Mn(8)O6 octahedra, and  an edgeedge with one Mn(2)O4 trigonal pyramid. In the seventh Mn site, Mn(7) is bonded in a 5-coordinate geometry to one O(10), one O(2), one O(4), one O(6), and one O(9) atom. In the eighth Mn site, Mn(8) is bonded to one O(10), one O(2), one O(3), one O(4), one O(5), and one O(9) atom to form MnO6 octahedra that share  a cornercorner with one Mn(3)O4 tetrahedra,  a cornercorner with one Mn(9)O4 tetrahedra, edges with two equivalent Mn(6)O5 square pyramids, and  an edgeedge with one Mn(2)O4 trigonal pyramid. In the ninth Mn site, Mn(9) is bonded to one O(1), one O(4), one O(6), and one O(7) atom to form MnO4 tetrahedra that share  a cornercorner with one Mn(8)O6 octahedra, corners with two equivalent Mn(3)O4 tetrahedra, and  a cornercorner with one Mn(2)O4 trigonal pyramid. The corner-sharing octahedral tilt angles are 65°. Cd(1) is bonded in a distorted L-shaped geometry to one O(1) and one O(7) atom. There are ten inequivalent O sites. In the first O site, O(1) is bonded in a distorted rectangular see-saw-like geometry to one Mn(3), one Mn(5), one Mn(9), and one Cd(1) atom. In the second O site, O(2) is bonded to one Ca(1), one Mn(1), one Mn(5), one Mn(6), one Mn(7), and one Mn(8) atom to form OCaMn5 octahedra that share  a cornercorner with one O(4)CaMn3 tetrahedra,  a cornercorner with one O(6)Mn4 tetrahedra, corners with three equivalent O(9)CaMn4 trigonal bipyramids, edges with two equivalent O(5)Mn6 octahedra,  an edgeedge with one O(4)CaMn3 tetrahedra,  an edgeedge with one O(9)CaMn4 trigonal bipyramid, and edges with two equivalent O(10)CaMn4 trigonal bipyramids. In the third O site, O(3) is bonded in a 6-coordinate geometry to one Ca(1), one Mn(1), one Mn(2), one Mn(5), one Mn(6), and one Mn(8) atom. In the fourth O site, O(4) is bonded to one Ca(1), one Mn(7), one Mn(8), and one Mn(9) atom to form OCaMn3 tetrahedra that share  a cornercorner with one O(2)CaMn5 octahedra,  a cornercorner with one O(5)Mn6 octahedra,  a cornercorner with one O(7)Mn3Cd tetrahedra, corners with two equivalent O(6)Mn4 tetrahedra,  a cornercorner with one O(9)CaMn4 trigonal bipyramid, corners with three equivalent O(10)CaMn4 trigonal bipyramids,  an edgeedge with one O(2)CaMn5 octahedra, and  an edgeedge with one O(9)CaMn4 trigonal bipyramid. The corner-sharing octahedral tilt angles range from 6-47°. In the fifth O site, O(5) is bonded to one Mn(1), one Mn(2), one Mn(3), one Mn(5), one Mn(6), and one Mn(8) atom to form OMn6 octahedra that share  a cornercorner with one O(4)CaMn3 tetrahedra,  a cornercorner with one O(7)Mn3Cd tetrahedra,  a cornercorner with one O(6)Mn4 tetrahedra,  a cornercorner with one O(9)CaMn4 trigonal bipyramid, edges with two equivalent O(2)CaMn5 octahedra,  an edgeedge with one O(10)CaMn4 trigonal bipyramid, and  an edgeedge with one O(9)CaMn4 trigonal bipyramid. In the sixth O site, O(6) is bonded to one Mn(3), one Mn(4), one Mn(7), and one Mn(9) atom to form OMn4 tetrahedra that share  a cornercorner with one O(2)CaMn5 octahedra,  a cornercorner with one O(5)Mn6 octahedra, corners with two equivalent O(4)CaMn3 tetrahedra, corners with two equivalent O(7)Mn3Cd tetrahedra,  a cornercorner with one O(9)CaMn4 trigonal bipyramid, and corners with two equivalent O(10)CaMn4 trigonal bipyramids. The corner-sharing octahedral tilt angles range from 3-62°. In the seventh O site, O(7) is bonded to one Mn(2), one Mn(4), one Mn(9), and one Cd(1) atom to form OMn3Cd tetrahedra that share  a cornercorner with one O(5)Mn6 octahedra,  a cornercorner with one O(4)CaMn3 tetrahedra, corners with two equivalent O(6)Mn4 tetrahedra, and  a cornercorner with one O(10)CaMn4 trigonal bipyramid. The corner-sharing octahedral tilt angles are 44°. In the eighth O site, O(8) is bonded in a 5-coordinate geometry to one Mn(1), one Mn(2), one Mn(3), one Mn(5), and one Mn(6) atom. In the ninth O site, O(9) is bonded to one Ca(1), one Mn(1), one Mn(6), one Mn(7), and one Mn(8) atom to form distorted OCaMn4 trigonal bipyramids that share  a cornercorner with one O(5)Mn6 octahedra, corners with three equivalent O(2)CaMn5 octahedra,  a cornercorner with one O(4)CaMn3 tetrahedra,  a cornercorner with one O(6)Mn4 tetrahedra,  an edgeedge with one O(2)CaMn5 octahedra,  an edgeedge with one O(5)Mn6 octahedra,  an edgeedge with one O(4)CaMn3 tetrahedra, and edges with two equivalent O(10)CaMn4 trigonal bipyramids. The corner-sharing octahedral tilt angles range from 10-53°. In the tenth O site, O(10) is bonded to one Ca(1), one Mn(1), one Mn(4), one Mn(7), and one Mn(8) atom to form OCaMn4 trigonal bipyramids that share  a cornercorner with one O(7)Mn3Cd tetrahedra, corners with two equivalent O(6)Mn4 tetrahedra, corners with three equivalent O(4)CaMn3 tetrahedra,  an edgeedge with one O(5)Mn6 octahedra, edges with two equivalent O(2)CaMn5 octahedra, and edges with two equivalent O(9)CaMn4 trigonal bipyramids.
CaMn9CdO10 crystallizes in the triclinic P1 space group. Ca(1) is bonded in a 5-coordinate geometry to one O(10), one O(2), one O(3), one O(4), and one O(9) atom. The Ca(1)-O(10) bond length is 2.41 Å. The Ca(1)-O(2) bond length is 2.38 Å. The Ca(1)-O(3) bond length is 2.55 Å. The Ca(1)-O(4) bond length is 2.25 Å. The Ca(1)-O(9) bond length is 2.41 Å. There are nine inequivalent Mn sites. In the first Mn site, Mn(1) is bonded in a 6-coordinate geometry to one O(10), one O(2), one O(3), one O(5), one O(8), and one O(9) atom. The Mn(1)-O(10) bond length is 2.16 Å. The Mn(1)-O(2) bond length is 2.28 Å. The Mn(1)-O(3) bond length is 2.44 Å. The Mn(1)-O(5) bond length is 2.39 Å. The Mn(1)-O(8) bond length is 2.34 Å. The Mn(1)-O(9) bond length is 2.26 Å. In the second Mn site, Mn(2) is bonded to one O(3), one O(5), one O(7), and one O(8) atom to form MnO4 trigonal pyramids that share  a cornercorner with one Mn(6)O5 square pyramid,  a cornercorner with one Mn(9)O4 tetrahedra, corners with two equivalent Mn(3)O4 tetrahedra,  an edgeedge with one Mn(8)O6 octahedra, and  an edgeedge with one Mn(6)O5 square pyramid. The Mn(2)-O(3) bond length is 2.17 Å. The Mn(2)-O(5) bond length is 2.10 Å. The Mn(2)-O(7) bond length is 2.02 Å. The Mn(2)-O(8) bond length is 2.12 Å. In the third Mn site, Mn(3) is bonded to one O(1), one O(5), one O(6), and one O(8) atom to form distorted MnO4 tetrahedra that share  a cornercorner with one Mn(8)O6 octahedra, corners with two equivalent Mn(6)O5 square pyramids, corners with two equivalent Mn(9)O4 tetrahedra, and corners with two equivalent Mn(2)O4 trigonal pyramids. The corner-sharing octahedral tilt angles are 11°. The Mn(3)-O(1) bond length is 2.09 Å. The Mn(3)-O(5) bond length is 2.28 Å. The Mn(3)-O(6) bond length is 2.10 Å. The Mn(3)-O(8) bond length is 2.08 Å. In the fourth Mn site, Mn(4) is bonded in a distorted trigonal non-coplanar geometry to one O(10), one O(6), and one O(7) atom. The Mn(4)-O(10) bond length is 2.05 Å. The Mn(4)-O(6) bond length is 2.08 Å. The Mn(4)-O(7) bond length is 2.08 Å. In the fifth Mn site, Mn(5) is bonded in a 5-coordinate geometry to one O(1), one O(2), one O(3), one O(5), and one O(8) atom. The Mn(5)-O(1) bond length is 2.07 Å. The Mn(5)-O(2) bond length is 2.16 Å. The Mn(5)-O(3) bond length is 2.24 Å. The Mn(5)-O(5) bond length is 2.24 Å. The Mn(5)-O(8) bond length is 2.44 Å. In the sixth Mn site, Mn(6) is bonded to one O(2), one O(3), one O(5), one O(8), and one O(9) atom to form MnO5 square pyramids that share corners with two equivalent Mn(3)O4 tetrahedra,  a cornercorner with one Mn(2)O4 trigonal pyramid, edges with two equivalent Mn(8)O6 octahedra, and  an edgeedge with one Mn(2)O4 trigonal pyramid. The Mn(6)-O(2) bond length is 2.21 Å. The Mn(6)-O(3) bond length is 2.24 Å. The Mn(6)-O(5) bond length is 2.33 Å. The Mn(6)-O(8) bond length is 2.24 Å. The Mn(6)-O(9) bond length is 2.17 Å. In the seventh Mn site, Mn(7) is bonded in a 5-coordinate geometry to one O(10), one O(2), one O(4), one O(6), and one O(9) atom. The Mn(7)-O(10) bond length is 2.52 Å. The Mn(7)-O(2) bond length is 2.67 Å. The Mn(7)-O(4) bond length is 2.09 Å. The Mn(7)-O(6) bond length is 2.17 Å. The Mn(7)-O(9) bond length is 2.11 Å. In the eighth Mn site, Mn(8) is bonded to one O(10), one O(2), one O(3), one O(4), one O(5), and one O(9) atom to form MnO6 octahedra that share  a cornercorner with one Mn(3)O4 tetrahedra,  a cornercorner with one Mn(9)O4 tetrahedra, edges with two equivalent Mn(6)O5 square pyramids, and  an edgeedge with one Mn(2)O4 trigonal pyramid. The Mn(8)-O(10) bond length is 2.15 Å. The Mn(8)-O(2) bond length is 2.27 Å. The Mn(8)-O(3) bond length is 2.46 Å. The Mn(8)-O(4) bond length is 2.14 Å. The Mn(8)-O(5) bond length is 2.35 Å. The Mn(8)-O(9) bond length is 2.23 Å. In the ninth Mn site, Mn(9) is bonded to one O(1), one O(4), one O(6), and one O(7) atom to form MnO4 tetrahedra that share  a cornercorner with one Mn(8)O6 octahedra, corners with two equivalent Mn(3)O4 tetrahedra, and  a cornercorner with one Mn(2)O4 trigonal pyramid. The corner-sharing octahedral tilt angles are 65°. The Mn(9)-O(1) bond length is 2.16 Å. The Mn(9)-O(4) bond length is 2.06 Å. The Mn(9)-O(6) bond length is 2.09 Å. The Mn(9)-O(7) bond length is 2.09 Å. Cd(1) is bonded in a distorted L-shaped geometry to one O(1) and one O(7) atom. The Cd(1)-O(1) bond length is 2.46 Å. The Cd(1)-O(7) bond length is 2.21 Å. There are ten inequivalent O sites. In the first O site, O(1) is bonded in a distorted rectangular see-saw-like geometry to one Mn(3), one Mn(5), one Mn(9), and one Cd(1) atom. In the second O site, O(2) is bonded to one Ca(1), one Mn(1), one Mn(5), one Mn(6), one Mn(7), and one Mn(8) atom to form OCaMn5 octahedra that share  a cornercorner with one O(4)CaMn3 tetrahedra,  a cornercorner with one O(6)Mn4 tetrahedra, corners with three equivalent O(9)CaMn4 trigonal bipyramids, edges with two equivalent O(5)Mn6 octahedra,  an edgeedge with one O(4)CaMn3 tetrahedra,  an edgeedge with one O(9)CaMn4 trigonal bipyramid, and edges with two equivalent O(10)CaMn4 trigonal bipyramids. In the third O site, O(3) is bonded in a 6-coordinate geometry to one Ca(1), one Mn(1), one Mn(2), one Mn(5), one Mn(6), and one Mn(8) atom. In the fourth O site, O(4) is bonded to one Ca(1), one Mn(7), one Mn(8), and one Mn(9) atom to form OCaMn3 tetrahedra that share  a cornercorner with one O(2)CaMn5 octahedra,  a cornercorner with one O(5)Mn6 octahedra,  a cornercorner with one O(7)Mn3Cd tetrahedra, corners with two equivalent O(6)Mn4 tetrahedra,  a cornercorner with one O(9)CaMn4 trigonal bipyramid, corners with three equivalent O(10)CaMn4 trigonal bipyramids,  an edgeedge with one O(2)CaMn5 octahedra, and  an edgeedge with one O(9)CaMn4 trigonal bipyramid. The corner-sharing octahedral tilt angles range from 6-47°. In the fifth O site, O(5) is bonded to one Mn(1), one Mn(2), one Mn(3), one Mn(5), one Mn(6), and one Mn(8) atom to form OMn6 octahedra that share  a cornercorner with one O(4)CaMn3 tetrahedra,  a cornercorner with one O(7)Mn3Cd tetrahedra,  a cornercorner with one O(6)Mn4 tetrahedra,  a cornercorner with one O(9)CaMn4 trigonal bipyramid, edges with two equivalent O(2)CaMn5 octahedra,  an edgeedge with one O(10)CaMn4 trigonal bipyramid, and  an edgeedge with one O(9)CaMn4 trigonal bipyramid. In the sixth O site, O(6) is bonded to one Mn(3), one Mn(4), one Mn(7), and one Mn(9) atom to form OMn4 tetrahedra that share  a cornercorner with one O(2)CaMn5 octahedra,  a cornercorner with one O(5)Mn6 octahedra, corners with two equivalent O(4)CaMn3 tetrahedra, corners with two equivalent O(7)Mn3Cd tetrahedra,  a cornercorner with one O(9)CaMn4 trigonal bipyramid, and corners with two equivalent O(10)CaMn4 trigonal bipyramids. The corner-sharing octahedral tilt angles range from 3-62°. In the seventh O site, O(7) is bonded to one Mn(2), one Mn(4), one Mn(9), and one Cd(1) atom to form OMn3Cd tetrahedra that share  a cornercorner with one O(5)Mn6 octahedra,  a cornercorner with one O(4)CaMn3 tetrahedra, corners with two equivalent O(6)Mn4 tetrahedra, and  a cornercorner with one O(10)CaMn4 trigonal bipyramid. The corner-sharing octahedral tilt angles are 44°. In the eighth O site, O(8) is bonded in a 5-coordinate geometry to one Mn(1), one Mn(2), one Mn(3), one Mn(5), and one Mn(6) atom. In the ninth O site, O(9) is bonded to one Ca(1), one Mn(1), one Mn(6), one Mn(7), and one Mn(8) atom to form distorted OCaMn4 trigonal bipyramids that share  a cornercorner with one O(5)Mn6 octahedra, corners with three equivalent O(2)CaMn5 octahedra,  a cornercorner with one O(4)CaMn3 tetrahedra,  a cornercorner with one O(6)Mn4 tetrahedra,  an edgeedge with one O(2)CaMn5 octahedra,  an edgeedge with one O(5)Mn6 octahedra,  an edgeedge with one O(4)CaMn3 tetrahedra, and edges with two equivalent O(10)CaMn4 trigonal bipyramids. The corner-sharing octahedral tilt angles range from 10-53°. In the tenth O site, O(10) is bonded to one Ca(1), one Mn(1), one Mn(4), one Mn(7), and one Mn(8) atom to form OCaMn4 trigonal bipyramids that share  a cornercorner with one O(7)Mn3Cd tetrahedra, corners with two equivalent O(6)Mn4 tetrahedra, corners with three equivalent O(4)CaMn3 tetrahedra,  an edgeedge with one O(5)Mn6 octahedra, edges with two equivalent O(2)CaMn5 octahedra, and edges with two equivalent O(9)CaMn4 trigonal bipyramids.