BaMn4ZnO8 crystallizes in the trigonal P-31m space group. Ba(1) is bonded to six equivalent O(1) and six equivalent O(2) atoms to form BaO12 cuboctahedra that share edges with six equivalent Ba(1)O12 cuboctahedra, edges with twelve equivalent Mn(1)O4 tetrahedra, and faces with two equivalent Zn(1)O6 octahedra. Mn(1) is bonded to one O(2) and three equivalent O(1) atoms to form MnO4 tetrahedra that share corners with three equivalent Zn(1)O6 octahedra, corners with four equivalent Mn(1)O4 tetrahedra, and edges with three equivalent Ba(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles are 56°. Zn(1) is bonded to six equivalent O(1) atoms to form ZnO6 octahedra that share corners with twelve equivalent Mn(1)O4 tetrahedra and faces with two equivalent Ba(1)O12 cuboctahedra. There are two inequivalent O sites. In the first O site, O(1) is bonded to one Ba(1), two equivalent Mn(1), and one Zn(1) atom to form a mixture of distorted corner and edge-sharing OBaMn2Zn trigonal pyramids. In the second O site, O(2) is bonded in a linear geometry to three equivalent Ba(1) and two equivalent Mn(1) atoms.
BaMn4ZnO8 crystallizes in the trigonal P-31m space group. Ba(1) is bonded to six equivalent O(1) and six equivalent O(2) atoms to form BaO12 cuboctahedra that share edges with six equivalent Ba(1)O12 cuboctahedra, edges with twelve equivalent Mn(1)O4 tetrahedra, and faces with two equivalent Zn(1)O6 octahedra. All Ba(1)-O(1) bond lengths are 2.87 Å. All Ba(1)-O(2) bond lengths are 3.18 Å. Mn(1) is bonded to one O(2) and three equivalent O(1) atoms to form MnO4 tetrahedra that share corners with three equivalent Zn(1)O6 octahedra, corners with four equivalent Mn(1)O4 tetrahedra, and edges with three equivalent Ba(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles are 56°. The Mn(1)-O(2) bond length is 1.89 Å. All Mn(1)-O(1) bond lengths are 1.94 Å. Zn(1) is bonded to six equivalent O(1) atoms to form ZnO6 octahedra that share corners with twelve equivalent Mn(1)O4 tetrahedra and faces with two equivalent Ba(1)O12 cuboctahedra. All Zn(1)-O(1) bond lengths are 2.15 Å. There are two inequivalent O sites. In the first O site, O(1) is bonded to one Ba(1), two equivalent Mn(1), and one Zn(1) atom to form a mixture of distorted corner and edge-sharing OBaMn2Zn trigonal pyramids. In the second O site, O(2) is bonded in a linear geometry to three equivalent Ba(1) and two equivalent Mn(1) atoms.