BaZn(SnO2)4 crystallizes in the trigonal P-31m space group. Ba(1) is bonded in a 6-coordinate geometry to six equivalent O(1) atoms. Zn(1) is bonded to six equivalent O(1) atoms to form ZnO6 octahedra that share corners with twelve equivalent Sn(1)O4 trigonal pyramids. Sn(1) is bonded to one O(2) and three equivalent O(1) atoms to form SnO4 trigonal pyramids that share corners with three equivalent Zn(1)O6 octahedra and corners with four equivalent Sn(1)O4 trigonal pyramids. The corner-sharing octahedral tilt angles are 61°. There are two inequivalent O sites. In the first O site, O(1) is bonded to one Ba(1), one Zn(1), and two equivalent Sn(1) atoms to form a mixture of corner and edge-sharing OBaZnSn2 tetrahedra. In the second O site, O(2) is bonded in a linear geometry to two equivalent Sn(1) atoms.
BaZn(SnO2)4 crystallizes in the trigonal P-31m space group. Ba(1) is bonded in a 6-coordinate geometry to six equivalent O(1) atoms. All Ba(1)-O(1) bond lengths are 2.73 Å. Zn(1) is bonded to six equivalent O(1) atoms to form ZnO6 octahedra that share corners with twelve equivalent Sn(1)O4 trigonal pyramids. All Zn(1)-O(1) bond lengths are 2.22 Å. Sn(1) is bonded to one O(2) and three equivalent O(1) atoms to form SnO4 trigonal pyramids that share corners with three equivalent Zn(1)O6 octahedra and corners with four equivalent Sn(1)O4 trigonal pyramids. The corner-sharing octahedral tilt angles are 61°. The Sn(1)-O(2) bond length is 2.02 Å. All Sn(1)-O(1) bond lengths are 2.14 Å. There are two inequivalent O sites. In the first O site, O(1) is bonded to one Ba(1), one Zn(1), and two equivalent Sn(1) atoms to form a mixture of corner and edge-sharing OBaZnSn2 tetrahedra. In the second O site, O(2) is bonded in a linear geometry to two equivalent Sn(1) atoms.