Cu2ZnGeTe4 is Stannite-like structured and crystallizes in the tetragonal I-4 space group. There are two inequivalent Cu sites. In the first Cu site, Cu(1) is bonded to four equivalent Te(1) atoms to form CuTe4 tetrahedra that share corners with four equivalent Cu(2)Te4 tetrahedra, corners with four equivalent Zn(1)Te4 tetrahedra, and corners with four equivalent Ge(1)Te4 tetrahedra. In the second Cu site, Cu(2) is bonded to four equivalent Te(1) atoms to form CuTe4 tetrahedra that share corners with four equivalent Cu(1)Te4 tetrahedra, corners with four equivalent Zn(1)Te4 tetrahedra, and corners with four equivalent Ge(1)Te4 tetrahedra. Zn(1) is bonded to four equivalent Te(1) atoms to form ZnTe4 tetrahedra that share corners with four equivalent Cu(1)Te4 tetrahedra, corners with four equivalent Cu(2)Te4 tetrahedra, and corners with four equivalent Ge(1)Te4 tetrahedra. Ge(1) is bonded to four equivalent Te(1) atoms to form GeTe4 tetrahedra that share corners with four equivalent Cu(1)Te4 tetrahedra, corners with four equivalent Cu(2)Te4 tetrahedra, and corners with four equivalent Zn(1)Te4 tetrahedra. Te(1) is bonded to one Cu(1), one Cu(2), one Zn(1), and one Ge(1) atom to form corner-sharing TeZnCu2Ge tetrahedra.
Cu2ZnGeTe4 is Stannite-like structured and crystallizes in the tetragonal I-4 space group. There are two inequivalent Cu sites. In the first Cu site, Cu(1) is bonded to four equivalent Te(1) atoms to form CuTe4 tetrahedra that share corners with four equivalent Cu(2)Te4 tetrahedra, corners with four equivalent Zn(1)Te4 tetrahedra, and corners with four equivalent Ge(1)Te4 tetrahedra. All Cu(1)-Te(1) bond lengths are 2.62 Å. In the second Cu site, Cu(2) is bonded to four equivalent Te(1) atoms to form CuTe4 tetrahedra that share corners with four equivalent Cu(1)Te4 tetrahedra, corners with four equivalent Zn(1)Te4 tetrahedra, and corners with four equivalent Ge(1)Te4 tetrahedra. All Cu(2)-Te(1) bond lengths are 2.60 Å. Zn(1) is bonded to four equivalent Te(1) atoms to form ZnTe4 tetrahedra that share corners with four equivalent Cu(1)Te4 tetrahedra, corners with four equivalent Cu(2)Te4 tetrahedra, and corners with four equivalent Ge(1)Te4 tetrahedra. All Zn(1)-Te(1) bond lengths are 2.67 Å. Ge(1) is bonded to four equivalent Te(1) atoms to form GeTe4 tetrahedra that share corners with four equivalent Cu(1)Te4 tetrahedra, corners with four equivalent Cu(2)Te4 tetrahedra, and corners with four equivalent Zn(1)Te4 tetrahedra. All Ge(1)-Te(1) bond lengths are 2.70 Å. Te(1) is bonded to one Cu(1), one Cu(2), one Zn(1), and one Ge(1) atom to form corner-sharing TeZnCu2Ge tetrahedra.