MnCd4O5 is Caswellsilverite-like structured and crystallizes in the monoclinic P2_1/m space group. Mn(1) is bonded to three equivalent O(2) and three equivalent O(3) atoms to form MnO6 octahedra that share corners with three equivalent Cd(1)O6 octahedra, corners with three equivalent Cd(2)O6 octahedra, edges with three equivalent Cd(1)O6 octahedra, edges with three equivalent Cd(2)O6 octahedra, and edges with six equivalent Mn(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 6-7°. There are four inequivalent Cd sites. In the first Cd site, Cd(1) is bonded to one O(2), one O(5), two equivalent O(3), and two equivalent O(4) atoms to form CdO6 octahedra that share corners with three equivalent Mn(1)O6 octahedra, corners with three equivalent Cd(3)O6 octahedra,  an edgeedge with one Cd(3)O6 octahedra, edges with two equivalent Cd(1)O6 octahedra, edges with two equivalent Cd(4)O6 octahedra, edges with three equivalent Mn(1)O6 octahedra, and edges with four equivalent Cd(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 0-6°. In the second Cd site, Cd(2) is bonded to one O(3), one O(4), two equivalent O(2), and two equivalent O(5) atoms to form CdO6 octahedra that share corners with three equivalent Mn(1)O6 octahedra, corners with three equivalent Cd(4)O6 octahedra,  an edgeedge with one Cd(4)O6 octahedra, edges with two equivalent Cd(2)O6 octahedra, edges with two equivalent Cd(3)O6 octahedra, edges with three equivalent Mn(1)O6 octahedra, and edges with four equivalent Cd(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 1-7°. In the third Cd site, Cd(3) is bonded to one O(5), two equivalent O(4), and three equivalent O(1) atoms to form a mixture of corner and edge-sharing CdO6 octahedra. The corner-sharing octahedral tilt angles range from 0-1°. In the fourth Cd site, Cd(4) is bonded to one O(4), two equivalent O(5), and three equivalent O(1) atoms to form a mixture of corner and edge-sharing CdO6 octahedra. The corner-sharing octahedral tilt angles range from 0-1°. There are five inequivalent O sites. In the first O site, O(1) is bonded to three equivalent Cd(3) and three equivalent Cd(4) atoms to form a mixture of corner and edge-sharing OCd6 octahedra. The corner-sharing octahedral tilt angles range from 0-1°. In the second O site, O(2) is bonded to three equivalent Mn(1), one Cd(1), and two equivalent Cd(2) atoms to form OMn3Cd3 octahedra that share corners with three equivalent O(5)Cd6 octahedra, corners with three equivalent O(3)Mn3Cd3 octahedra,  an edgeedge with one O(5)Cd6 octahedra, edges with two equivalent O(4)Cd6 octahedra, edges with four equivalent O(2)Mn3Cd3 octahedra, and edges with five equivalent O(3)Mn3Cd3 octahedra. The corner-sharing octahedral tilt angles range from 0-2°. In the third O site, O(3) is bonded to three equivalent Mn(1), one Cd(2), and two equivalent Cd(1) atoms to form OMn3Cd3 octahedra that share corners with three equivalent O(4)Cd6 octahedra, corners with three equivalent O(2)Mn3Cd3 octahedra,  an edgeedge with one O(4)Cd6 octahedra, edges with two equivalent O(5)Cd6 octahedra, edges with four equivalent O(3)Mn3Cd3 octahedra, and edges with five equivalent O(2)Mn3Cd3 octahedra. The corner-sharing octahedral tilt angles range from 0-2°. In the fourth O site, O(4) is bonded to one Cd(2), one Cd(4), two equivalent Cd(1), and two equivalent Cd(3) atoms to form OCd6 octahedra that share corners with three equivalent O(1)Cd6 octahedra, corners with three equivalent O(3)Mn3Cd3 octahedra,  an edgeedge with one O(3)Mn3Cd3 octahedra, edges with two equivalent O(4)Cd6 octahedra, edges with two equivalent O(2)Mn3Cd3 octahedra, edges with three equivalent O(1)Cd6 octahedra, and edges with four equivalent O(5)Cd6 octahedra. The corner-sharing octahedral tilt angles range from 0-2°. In the fifth O site, O(5) is bonded to one Cd(1), one Cd(3), two equivalent Cd(2), and two equivalent Cd(4) atoms to form OCd6 octahedra that share corners with three equivalent O(1)Cd6 octahedra, corners with three equivalent O(2)Mn3Cd3 octahedra,  an edgeedge with one O(2)Mn3Cd3 octahedra, edges with two equivalent O(5)Cd6 octahedra, edges with two equivalent O(3)Mn3Cd3 octahedra, edges with three equivalent O(1)Cd6 octahedra, and edges with four equivalent O(4)Cd6 octahedra. The corner-sharing octahedral tilt angles range from 0-2°.
MnCd4O5 is Caswellsilverite-like structured and crystallizes in the monoclinic P2_1/m space group. Mn(1) is bonded to three equivalent O(2) and three equivalent O(3) atoms to form MnO6 octahedra that share corners with three equivalent Cd(1)O6 octahedra, corners with three equivalent Cd(2)O6 octahedra, edges with three equivalent Cd(1)O6 octahedra, edges with three equivalent Cd(2)O6 octahedra, and edges with six equivalent Mn(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 6-7°. There are two shorter (2.20 Å) and one longer (2.27 Å) Mn(1)-O(2) bond length. There are two shorter (2.20 Å) and one longer (2.29 Å) Mn(1)-O(3) bond length. There are four inequivalent Cd sites. In the first Cd site, Cd(1) is bonded to one O(2), one O(5), two equivalent O(3), and two equivalent O(4) atoms to form CdO6 octahedra that share corners with three equivalent Mn(1)O6 octahedra, corners with three equivalent Cd(3)O6 octahedra,  an edgeedge with one Cd(3)O6 octahedra, edges with two equivalent Cd(1)O6 octahedra, edges with two equivalent Cd(4)O6 octahedra, edges with three equivalent Mn(1)O6 octahedra, and edges with four equivalent Cd(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 0-6°. The Cd(1)-O(2) bond length is 2.38 Å. The Cd(1)-O(5) bond length is 2.34 Å. Both Cd(1)-O(3) bond lengths are 2.39 Å. Both Cd(1)-O(4) bond lengths are 2.34 Å. In the second Cd site, Cd(2) is bonded to one O(3), one O(4), two equivalent O(2), and two equivalent O(5) atoms to form CdO6 octahedra that share corners with three equivalent Mn(1)O6 octahedra, corners with three equivalent Cd(4)O6 octahedra,  an edgeedge with one Cd(4)O6 octahedra, edges with two equivalent Cd(2)O6 octahedra, edges with two equivalent Cd(3)O6 octahedra, edges with three equivalent Mn(1)O6 octahedra, and edges with four equivalent Cd(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 1-7°. The Cd(2)-O(3) bond length is 2.38 Å. The Cd(2)-O(4) bond length is 2.34 Å. Both Cd(2)-O(2) bond lengths are 2.39 Å. Both Cd(2)-O(5) bond lengths are 2.34 Å. In the third Cd site, Cd(3) is bonded to one O(5), two equivalent O(4), and three equivalent O(1) atoms to form a mixture of corner and edge-sharing CdO6 octahedra. The corner-sharing octahedral tilt angles range from 0-1°. The Cd(3)-O(5) bond length is 2.37 Å. Both Cd(3)-O(4) bond lengths are 2.36 Å. There are two shorter (2.35 Å) and one longer (2.36 Å) Cd(3)-O(1) bond length. In the fourth Cd site, Cd(4) is bonded to one O(4), two equivalent O(5), and three equivalent O(1) atoms to form a mixture of corner and edge-sharing CdO6 octahedra. The corner-sharing octahedral tilt angles range from 0-1°. The Cd(4)-O(4) bond length is 2.37 Å. Both Cd(4)-O(5) bond lengths are 2.36 Å. There are two shorter (2.35 Å) and one longer (2.36 Å) Cd(4)-O(1) bond length. There are five inequivalent O sites. In the first O site, O(1) is bonded to three equivalent Cd(3) and three equivalent Cd(4) atoms to form a mixture of corner and edge-sharing OCd6 octahedra. The corner-sharing octahedral tilt angles range from 0-1°. In the second O site, O(2) is bonded to three equivalent Mn(1), one Cd(1), and two equivalent Cd(2) atoms to form OMn3Cd3 octahedra that share corners with three equivalent O(5)Cd6 octahedra, corners with three equivalent O(3)Mn3Cd3 octahedra,  an edgeedge with one O(5)Cd6 octahedra, edges with two equivalent O(4)Cd6 octahedra, edges with four equivalent O(2)Mn3Cd3 octahedra, and edges with five equivalent O(3)Mn3Cd3 octahedra. The corner-sharing octahedral tilt angles range from 0-2°. In the third O site, O(3) is bonded to three equivalent Mn(1), one Cd(2), and two equivalent Cd(1) atoms to form OMn3Cd3 octahedra that share corners with three equivalent O(4)Cd6 octahedra, corners with three equivalent O(2)Mn3Cd3 octahedra,  an edgeedge with one O(4)Cd6 octahedra, edges with two equivalent O(5)Cd6 octahedra, edges with four equivalent O(3)Mn3Cd3 octahedra, and edges with five equivalent O(2)Mn3Cd3 octahedra. The corner-sharing octahedral tilt angles range from 0-2°. In the fourth O site, O(4) is bonded to one Cd(2), one Cd(4), two equivalent Cd(1), and two equivalent Cd(3) atoms to form OCd6 octahedra that share corners with three equivalent O(1)Cd6 octahedra, corners with three equivalent O(3)Mn3Cd3 octahedra,  an edgeedge with one O(3)Mn3Cd3 octahedra, edges with two equivalent O(4)Cd6 octahedra, edges with two equivalent O(2)Mn3Cd3 octahedra, edges with three equivalent O(1)Cd6 octahedra, and edges with four equivalent O(5)Cd6 octahedra. The corner-sharing octahedral tilt angles range from 0-2°. In the fifth O site, O(5) is bonded to one Cd(1), one Cd(3), two equivalent Cd(2), and two equivalent Cd(4) atoms to form OCd6 octahedra that share corners with three equivalent O(1)Cd6 octahedra, corners with three equivalent O(2)Mn3Cd3 octahedra,  an edgeedge with one O(2)Mn3Cd3 octahedra, edges with two equivalent O(5)Cd6 octahedra, edges with two equivalent O(3)Mn3Cd3 octahedra, edges with three equivalent O(1)Cd6 octahedra, and edges with four equivalent O(4)Cd6 octahedra. The corner-sharing octahedral tilt angles range from 0-2°.