Cd(Ga3Te5)2 crystallizes in the monoclinic C2 space group. Cd(1) is bonded to two equivalent Te(3) and two equivalent Te(5) atoms to form CdTe4 tetrahedra that share corners with two equivalent Ga(1)Te4 tetrahedra and corners with six equivalent Ga(3)Te4 tetrahedra. There are three inequivalent Ga sites. In the first Ga site, Ga(1) is bonded to one Te(1), one Te(2), one Te(3), and one Te(4) atom to form GaTe4 tetrahedra that share  a cornercorner with one Cd(1)Te4 tetrahedra, corners with two equivalent Ga(3)Te4 tetrahedra, and corners with four equivalent Ga(2)Te4 tetrahedra. In the second Ga site, Ga(2) is bonded to one Te(2), one Te(4), and two equivalent Te(1) atoms to form corner-sharing GaTe4 tetrahedra. In the third Ga site, Ga(3) is bonded to one Te(3), one Te(4), and two equivalent Te(5) atoms to form GaTe4 tetrahedra that share  a cornercorner with one Ga(2)Te4 tetrahedra, corners with two equivalent Ga(1)Te4 tetrahedra, corners with two equivalent Ga(3)Te4 tetrahedra, and corners with three equivalent Cd(1)Te4 tetrahedra. There are five inequivalent Te sites. In the first Te site, Te(1) is bonded in a trigonal non-coplanar geometry to one Ga(1) and two equivalent Ga(2) atoms. In the second Te site, Te(2) is bonded in a water-like geometry to one Ga(1) and one Ga(2) atom. In the third Te site, Te(3) is bonded in a trigonal non-coplanar geometry to one Cd(1), one Ga(1), and one Ga(3) atom. In the fourth Te site, Te(4) is bonded in a trigonal non-coplanar geometry to one Ga(1), one Ga(2), and one Ga(3) atom. In the fifth Te site, Te(5) is bonded in a trigonal non-coplanar geometry to one Cd(1) and two equivalent Ga(3) atoms.
Cd(Ga3Te5)2 crystallizes in the monoclinic C2 space group. Cd(1) is bonded to two equivalent Te(3) and two equivalent Te(5) atoms to form CdTe4 tetrahedra that share corners with two equivalent Ga(1)Te4 tetrahedra and corners with six equivalent Ga(3)Te4 tetrahedra. Both Cd(1)-Te(3) bond lengths are 2.86 Å. Both Cd(1)-Te(5) bond lengths are 2.86 Å. There are three inequivalent Ga sites. In the first Ga site, Ga(1) is bonded to one Te(1), one Te(2), one Te(3), and one Te(4) atom to form GaTe4 tetrahedra that share  a cornercorner with one Cd(1)Te4 tetrahedra, corners with two equivalent Ga(3)Te4 tetrahedra, and corners with four equivalent Ga(2)Te4 tetrahedra. The Ga(1)-Te(1) bond length is 2.72 Å. The Ga(1)-Te(2) bond length is 2.61 Å. The Ga(1)-Te(3) bond length is 2.68 Å. The Ga(1)-Te(4) bond length is 2.71 Å. In the second Ga site, Ga(2) is bonded to one Te(2), one Te(4), and two equivalent Te(1) atoms to form corner-sharing GaTe4 tetrahedra. The Ga(2)-Te(2) bond length is 2.60 Å. The Ga(2)-Te(4) bond length is 2.71 Å. Both Ga(2)-Te(1) bond lengths are 2.69 Å. In the third Ga site, Ga(3) is bonded to one Te(3), one Te(4), and two equivalent Te(5) atoms to form GaTe4 tetrahedra that share  a cornercorner with one Ga(2)Te4 tetrahedra, corners with two equivalent Ga(1)Te4 tetrahedra, corners with two equivalent Ga(3)Te4 tetrahedra, and corners with three equivalent Cd(1)Te4 tetrahedra. The Ga(3)-Te(3) bond length is 2.67 Å. The Ga(3)-Te(4) bond length is 2.71 Å. Both Ga(3)-Te(5) bond lengths are 2.68 Å. There are five inequivalent Te sites. In the first Te site, Te(1) is bonded in a trigonal non-coplanar geometry to one Ga(1) and two equivalent Ga(2) atoms. In the second Te site, Te(2) is bonded in a water-like geometry to one Ga(1) and one Ga(2) atom. In the third Te site, Te(3) is bonded in a trigonal non-coplanar geometry to one Cd(1), one Ga(1), and one Ga(3) atom. In the fourth Te site, Te(4) is bonded in a trigonal non-coplanar geometry to one Ga(1), one Ga(2), and one Ga(3) atom. In the fifth Te site, Te(5) is bonded in a trigonal non-coplanar geometry to one Cd(1) and two equivalent Ga(3) atoms.