Sr(ZnGe)2 crystallizes in the tetragonal I4/mmm space group. Sr(1) is bonded in a 16-coordinate geometry to eight equivalent Zn(1) and eight equivalent Ge(1) atoms. Zn(1) is bonded to four equivalent Sr(1) and four equivalent Ge(1) atoms to form a mixture of distorted face, corner, and edge-sharing ZnSr4Ge4 tetrahedra. Ge(1) is bonded in a 9-coordinate geometry to four equivalent Sr(1), four equivalent Zn(1), and one Ge(1) atom.
Sr(ZnGe)2 crystallizes in the tetragonal I4/mmm space group. Sr(1) is bonded in a 16-coordinate geometry to eight equivalent Zn(1) and eight equivalent Ge(1) atoms. All Sr(1)-Zn(1) bond lengths are 3.43 Å. All Sr(1)-Ge(1) bond lengths are 3.35 Å. Zn(1) is bonded to four equivalent Sr(1) and four equivalent Ge(1) atoms to form a mixture of distorted face, corner, and edge-sharing ZnSr4Ge4 tetrahedra. All Zn(1)-Ge(1) bond lengths are 2.58 Å. Ge(1) is bonded in a 9-coordinate geometry to four equivalent Sr(1), four equivalent Zn(1), and one Ge(1) atom. The Ge(1)-Ge(1) bond length is 2.53 Å.