Cu2ZnGeTe4 is Stannite structured and crystallizes in the tetragonal I-42m space group. Cu(1) 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 Ge(1)Te4 tetrahedra and corners with eight equivalent Cu(1)Te4 tetrahedra. Ge(1) is bonded to four equivalent Te(1) atoms to form GeTe4 tetrahedra that share corners with four equivalent Zn(1)Te4 tetrahedra and corners with eight equivalent Cu(1)Te4 tetrahedra. Te(1) is bonded to two equivalent Cu(1), one Zn(1), and one Ge(1) atom to form corner-sharing TeZnCu2Ge tetrahedra.
Cu2ZnGeTe4 is Stannite structured and crystallizes in the tetragonal I-42m space group. Cu(1) 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(1)-Te(1) bond lengths are 2.57 Å. Zn(1) is bonded to four equivalent Te(1) atoms to form ZnTe4 tetrahedra that share corners with four equivalent Ge(1)Te4 tetrahedra and corners with eight equivalent Cu(1)Te4 tetrahedra. All Zn(1)-Te(1) bond lengths are 2.70 Å. Ge(1) is bonded to four equivalent Te(1) atoms to form GeTe4 tetrahedra that share corners with four equivalent Zn(1)Te4 tetrahedra and corners with eight equivalent Cu(1)Te4 tetrahedra. All Ge(1)-Te(1) bond lengths are 2.68 Å. Te(1) is bonded to two equivalent Cu(1), one Zn(1), and one Ge(1) atom to form corner-sharing TeZnCu2Ge tetrahedra.