MgCd2Te2(MoO6)2 crystallizes in the monoclinic Cm space group. Mg(1) is bonded in a distorted T-shaped geometry to one O(1) and two equivalent O(2) atoms. There are two inequivalent Mo sites. In the first Mo site, Mo(1) is bonded in a tetrahedral geometry to one O(1), one O(3), and two equivalent O(4) atoms. In the second Mo site, Mo(2) is bonded in a 4-coordinate geometry to one O(5), one O(6), two equivalent O(2), and two equivalent O(8) atoms. Cd(1) is bonded in a 8-coordinate geometry to one O(5), one O(6), one O(7), one O(9), two equivalent O(4), and two equivalent O(8) atoms. There are two inequivalent Te sites. In the first Te site, Te(1) is bonded in a distorted see-saw-like geometry to one O(7), one O(9), and two equivalent O(4) atoms. In the second Te site, Te(2) is bonded in a 4-coordinate geometry to one O(5), one O(6), and two equivalent O(8) atoms. There are nine inequivalent O sites. In the first O site, O(1) is bonded in a bent 150 degrees geometry to one Mg(1) and one Mo(1) atom. In the second O site, O(2) is bonded in an L-shaped geometry to one Mg(1) and one Mo(2) atom. In the third O site, O(3) is bonded in a single-bond geometry to one Mo(1) atom. In the fourth O site, O(4) is bonded in a 2-coordinate geometry to one Mo(1), two equivalent Cd(1), and one Te(1) atom. In the fifth O site, O(5) is bonded in a 4-coordinate geometry to one Mo(2), two equivalent Cd(1), and one Te(2) atom. In the sixth O site, O(6) is bonded in a distorted bent 150 degrees geometry to one Mo(2), two equivalent Cd(1), and one Te(2) atom. In the seventh O site, O(7) is bonded in a trigonal non-coplanar geometry to two equivalent Cd(1) and one Te(1) atom. In the eighth O site, O(8) is bonded to one Mo(2), two equivalent Cd(1), and one Te(2) atom to form distorted corner-sharing OCd2TeMo tetrahedra. In the ninth O site, O(9) is bonded in a trigonal planar geometry to two equivalent Cd(1) and one Te(1) atom.
MgCd2Te2(MoO6)2 crystallizes in the monoclinic Cm space group. Mg(1) is bonded in a distorted T-shaped geometry to one O(1) and two equivalent O(2) atoms. The Mg(1)-O(1) bond length is 1.88 Å. Both Mg(1)-O(2) bond lengths are 1.97 Å. There are two inequivalent Mo sites. In the first Mo site, Mo(1) is bonded in a tetrahedral geometry to one O(1), one O(3), and two equivalent O(4) atoms. The Mo(1)-O(1) bond length is 1.88 Å. The Mo(1)-O(3) bond length is 1.77 Å. Both Mo(1)-O(4) bond lengths are 1.93 Å. In the second Mo site, Mo(2) is bonded in a 4-coordinate geometry to one O(5), one O(6), two equivalent O(2), and two equivalent O(8) atoms. The Mo(2)-O(5) bond length is 1.90 Å. The Mo(2)-O(6) bond length is 1.91 Å. Both Mo(2)-O(2) bond lengths are 1.89 Å. Both Mo(2)-O(8) bond lengths are 2.59 Å. Cd(1) is bonded in a 8-coordinate geometry to one O(5), one O(6), one O(7), one O(9), two equivalent O(4), and two equivalent O(8) atoms. The Cd(1)-O(5) bond length is 2.62 Å. The Cd(1)-O(6) bond length is 2.81 Å. The Cd(1)-O(7) bond length is 2.21 Å. The Cd(1)-O(9) bond length is 2.20 Å. There is one shorter (2.75 Å) and one longer (2.81 Å) Cd(1)-O(4) bond length. There is one shorter (2.31 Å) and one longer (2.33 Å) Cd(1)-O(8) bond length. There are two inequivalent Te sites. In the first Te site, Te(1) is bonded in a distorted see-saw-like geometry to one O(7), one O(9), and two equivalent O(4) atoms. The Te(1)-O(7) bond length is 1.91 Å. The Te(1)-O(9) bond length is 1.91 Å. Both Te(1)-O(4) bond lengths are 2.12 Å. In the second Te site, Te(2) is bonded in a 4-coordinate geometry to one O(5), one O(6), and two equivalent O(8) atoms. The Te(2)-O(5) bond length is 2.20 Å. The Te(2)-O(6) bond length is 2.08 Å. Both Te(2)-O(8) bond lengths are 1.94 Å. There are nine inequivalent O sites. In the first O site, O(1) is bonded in a bent 150 degrees geometry to one Mg(1) and one Mo(1) atom. In the second O site, O(2) is bonded in an L-shaped geometry to one Mg(1) and one Mo(2) atom. In the third O site, O(3) is bonded in a single-bond geometry to one Mo(1) atom. In the fourth O site, O(4) is bonded in a 2-coordinate geometry to one Mo(1), two equivalent Cd(1), and one Te(1) atom. In the fifth O site, O(5) is bonded in a 4-coordinate geometry to one Mo(2), two equivalent Cd(1), and one Te(2) atom. In the sixth O site, O(6) is bonded in a distorted bent 150 degrees geometry to one Mo(2), two equivalent Cd(1), and one Te(2) atom. In the seventh O site, O(7) is bonded in a trigonal non-coplanar geometry to two equivalent Cd(1) and one Te(1) atom. In the eighth O site, O(8) is bonded to one Mo(2), two equivalent Cd(1), and one Te(2) atom to form distorted corner-sharing OCd2TeMo tetrahedra. In the ninth O site, O(9) is bonded in a trigonal planar geometry to two equivalent Cd(1) and one Te(1) atom.