Mn3Cd3(TeO6)2 is Ilmenite-derived structured and crystallizes in the trigonal R3 space group. Mn(1) is bonded in a 6-coordinate geometry to one O(2), one O(4), two equivalent O(1), and two equivalent O(3) atoms. Cd(1) is bonded to one O(1), one O(3), two equivalent O(2), and two equivalent O(4) atoms to form distorted CdO6 pentagonal pyramids that share  a cornercorner with one Te(1)O6 octahedra,  a cornercorner with one Te(2)O6 octahedra, corners with four equivalent Cd(1)O6 pentagonal pyramids,  an edgeedge with one Te(1)O6 octahedra, and  an edgeedge with one Te(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 39-42°. There are two inequivalent Te sites. In the first Te site, Te(1) is bonded to three equivalent O(1) and three equivalent O(2) atoms to form TeO6 octahedra that share corners with three equivalent Cd(1)O6 pentagonal pyramids and edges with three equivalent Cd(1)O6 pentagonal pyramids. In the second Te site, Te(2) is bonded to three equivalent O(3) and three equivalent O(4) atoms to form TeO6 octahedra that share corners with three equivalent Cd(1)O6 pentagonal pyramids and edges with three equivalent Cd(1)O6 pentagonal pyramids. There are four inequivalent O sites. In the first O site, O(4) is bonded to one Mn(1), two equivalent Cd(1), and one Te(2) atom to form distorted OMnCd2Te tetrahedra that share corners with five equivalent O(3)Mn2CdTe tetrahedra, corners with two equivalent O(1)Mn2CdTe trigonal pyramids, corners with five equivalent O(2)MnCd2Te trigonal pyramids,  an edgeedge with one O(3)Mn2CdTe tetrahedra, edges with two equivalent O(4)MnCd2Te tetrahedra, and  an edgeedge with one O(1)Mn2CdTe trigonal pyramid. In the second O site, O(1) is bonded to two equivalent Mn(1), one Cd(1), and one Te(1) atom to form distorted OMn2CdTe trigonal pyramids that share corners with two equivalent O(4)MnCd2Te tetrahedra, corners with five equivalent O(3)Mn2CdTe tetrahedra,  a cornercorner with one O(2)MnCd2Te trigonal pyramid, corners with four equivalent O(1)Mn2CdTe trigonal pyramids,  an edgeedge with one O(4)MnCd2Te tetrahedra, and edges with three equivalent O(2)MnCd2Te trigonal pyramids. In the third O site, O(2) is bonded to one Mn(1), two equivalent Cd(1), and one Te(1) atom to form distorted OMnCd2Te trigonal pyramids that share corners with two equivalent O(3)Mn2CdTe tetrahedra, corners with five equivalent O(4)MnCd2Te tetrahedra,  a cornercorner with one O(1)Mn2CdTe trigonal pyramid, corners with four equivalent O(2)MnCd2Te trigonal pyramids,  an edgeedge with one O(3)Mn2CdTe tetrahedra, and edges with three equivalent O(1)Mn2CdTe trigonal pyramids. In the fourth O site, O(3) is bonded to two equivalent Mn(1), one Cd(1), and one Te(2) atom to form distorted OMn2CdTe tetrahedra that share corners with five equivalent O(4)MnCd2Te tetrahedra, corners with two equivalent O(2)MnCd2Te trigonal pyramids, corners with five equivalent O(1)Mn2CdTe trigonal pyramids,  an edgeedge with one O(4)MnCd2Te tetrahedra, edges with two equivalent O(3)Mn2CdTe tetrahedra, and  an edgeedge with one O(2)MnCd2Te trigonal pyramid.
Mn3Cd3(TeO6)2 is Ilmenite-derived structured and crystallizes in the trigonal R3 space group. Mn(1) is bonded in a 6-coordinate geometry to one O(2), one O(4), two equivalent O(1), and two equivalent O(3) atoms. The Mn(1)-O(2) bond length is 2.19 Å. The Mn(1)-O(4) bond length is 2.20 Å. There is one shorter (2.14 Å) and one longer (2.53 Å) Mn(1)-O(1) bond length. There is one shorter (2.22 Å) and one longer (2.29 Å) Mn(1)-O(3) bond length. Cd(1) is bonded to one O(1), one O(3), two equivalent O(2), and two equivalent O(4) atoms to form distorted CdO6 pentagonal pyramids that share  a cornercorner with one Te(1)O6 octahedra,  a cornercorner with one Te(2)O6 octahedra, corners with four equivalent Cd(1)O6 pentagonal pyramids,  an edgeedge with one Te(1)O6 octahedra, and  an edgeedge with one Te(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 39-42°. The Cd(1)-O(1) bond length is 2.31 Å. The Cd(1)-O(3) bond length is 2.26 Å. There is one shorter (2.26 Å) and one longer (2.51 Å) Cd(1)-O(2) bond length. There is one shorter (2.35 Å) and one longer (2.37 Å) Cd(1)-O(4) bond length. There are two inequivalent Te sites. In the first Te site, Te(1) is bonded to three equivalent O(1) and three equivalent O(2) atoms to form TeO6 octahedra that share corners with three equivalent Cd(1)O6 pentagonal pyramids and edges with three equivalent Cd(1)O6 pentagonal pyramids. All Te(1)-O(1) bond lengths are 1.97 Å. All Te(1)-O(2) bond lengths are 1.97 Å. In the second Te site, Te(2) is bonded to three equivalent O(3) and three equivalent O(4) atoms to form TeO6 octahedra that share corners with three equivalent Cd(1)O6 pentagonal pyramids and edges with three equivalent Cd(1)O6 pentagonal pyramids. All Te(2)-O(3) bond lengths are 1.97 Å. All Te(2)-O(4) bond lengths are 1.97 Å. There are four inequivalent O sites. In the first O site, O(4) is bonded to one Mn(1), two equivalent Cd(1), and one Te(2) atom to form distorted OMnCd2Te tetrahedra that share corners with five equivalent O(3)Mn2CdTe tetrahedra, corners with two equivalent O(1)Mn2CdTe trigonal pyramids, corners with five equivalent O(2)MnCd2Te trigonal pyramids,  an edgeedge with one O(3)Mn2CdTe tetrahedra, edges with two equivalent O(4)MnCd2Te tetrahedra, and  an edgeedge with one O(1)Mn2CdTe trigonal pyramid. In the second O site, O(1) is bonded to two equivalent Mn(1), one Cd(1), and one Te(1) atom to form distorted OMn2CdTe trigonal pyramids that share corners with two equivalent O(4)MnCd2Te tetrahedra, corners with five equivalent O(3)Mn2CdTe tetrahedra,  a cornercorner with one O(2)MnCd2Te trigonal pyramid, corners with four equivalent O(1)Mn2CdTe trigonal pyramids,  an edgeedge with one O(4)MnCd2Te tetrahedra, and edges with three equivalent O(2)MnCd2Te trigonal pyramids. In the third O site, O(2) is bonded to one Mn(1), two equivalent Cd(1), and one Te(1) atom to form distorted OMnCd2Te trigonal pyramids that share corners with two equivalent O(3)Mn2CdTe tetrahedra, corners with five equivalent O(4)MnCd2Te tetrahedra,  a cornercorner with one O(1)Mn2CdTe trigonal pyramid, corners with four equivalent O(2)MnCd2Te trigonal pyramids,  an edgeedge with one O(3)Mn2CdTe tetrahedra, and edges with three equivalent O(1)Mn2CdTe trigonal pyramids. In the fourth O site, O(3) is bonded to two equivalent Mn(1), one Cd(1), and one Te(2) atom to form distorted OMn2CdTe tetrahedra that share corners with five equivalent O(4)MnCd2Te tetrahedra, corners with two equivalent O(2)MnCd2Te trigonal pyramids, corners with five equivalent O(1)Mn2CdTe trigonal pyramids,  an edgeedge with one O(4)MnCd2Te tetrahedra, edges with two equivalent O(3)Mn2CdTe tetrahedra, and  an edgeedge with one O(2)MnCd2Te trigonal pyramid.