Cd(CuSe)2 crystallizes in the trigonal P-3m1 space group. Cu(1) is bonded to four equivalent Se(1) atoms to form distorted CuSe4 tetrahedra that share corners with six equivalent Cd(1)Se6 octahedra, corners with six equivalent Cu(1)Se4 tetrahedra, edges with three equivalent Cd(1)Se6 octahedra, and edges with three equivalent Cu(1)Se4 tetrahedra. The corner-sharing octahedral tilt angles range from 10-54°. Cd(1) is bonded to six equivalent Se(1) atoms to form CdSe6 octahedra that share corners with twelve equivalent Cu(1)Se4 tetrahedra, edges with six equivalent Cd(1)Se6 octahedra, and edges with six equivalent Cu(1)Se4 tetrahedra. Se(1) is bonded to four equivalent Cu(1) and three equivalent Cd(1) atoms to form a mixture of distorted edge and corner-sharing SeCd3Cu4 pentagonal bipyramids.
Cd(CuSe)2 crystallizes in the trigonal P-3m1 space group. Cu(1) is bonded to four equivalent Se(1) atoms to form distorted CuSe4 tetrahedra that share corners with six equivalent Cd(1)Se6 octahedra, corners with six equivalent Cu(1)Se4 tetrahedra, edges with three equivalent Cd(1)Se6 octahedra, and edges with three equivalent Cu(1)Se4 tetrahedra. The corner-sharing octahedral tilt angles range from 10-54°. There is one shorter (2.41 Å) and three longer (2.56 Å) Cu(1)-Se(1) bond lengths. Cd(1) is bonded to six equivalent Se(1) atoms to form CdSe6 octahedra that share corners with twelve equivalent Cu(1)Se4 tetrahedra, edges with six equivalent Cd(1)Se6 octahedra, and edges with six equivalent Cu(1)Se4 tetrahedra. All Cd(1)-Se(1) bond lengths are 2.85 Å. Se(1) is bonded to four equivalent Cu(1) and three equivalent Cd(1) atoms to form a mixture of distorted edge and corner-sharing SeCd3Cu4 pentagonal bipyramids.