YBaCoZn3O7 crystallizes in the hexagonal P6_3mc space group. Ba(1) is bonded to six equivalent O(1) and six equivalent O(2) atoms to form distorted BaO12 cuboctahedra that share corners with twelve equivalent Ba(1)O12 cuboctahedra, edges with three equivalent Co(1)O4 tetrahedra, edges with nine equivalent Zn(1)O4 tetrahedra, and faces with four equivalent Y(1)O6 octahedra. Y(1) is bonded to three equivalent O(1) and three equivalent O(2) atoms to form YO6 octahedra that share corners with three equivalent Co(1)O4 tetrahedra, corners with nine equivalent Zn(1)O4 tetrahedra, and faces with four equivalent Ba(1)O12 cuboctahedra. Co(1) is bonded to one O(3) and three equivalent O(2) atoms to form CoO4 tetrahedra that share corners with three equivalent Y(1)O6 octahedra, corners with six equivalent Zn(1)O4 tetrahedra, and edges with three equivalent Ba(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles are 52°. Zn(1) is bonded to one O(2), one O(3), and two equivalent O(1) atoms to form ZnO4 tetrahedra that share corners with three equivalent Y(1)O6 octahedra, corners with two equivalent Co(1)O4 tetrahedra, corners with four equivalent Zn(1)O4 tetrahedra, and edges with three equivalent Ba(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 54-60°. There are three inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to two equivalent Ba(1), one Y(1), and two equivalent Zn(1) atoms. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to two equivalent Ba(1), one Y(1), one Co(1), and one Zn(1) atom. In the third O site, O(3) is bonded in a tetrahedral geometry to one Co(1) and three equivalent Zn(1) atoms.
YBaCoZn3O7 crystallizes in the hexagonal P6_3mc space group. Ba(1) is bonded to six equivalent O(1) and six equivalent O(2) atoms to form distorted BaO12 cuboctahedra that share corners with twelve equivalent Ba(1)O12 cuboctahedra, edges with three equivalent Co(1)O4 tetrahedra, edges with nine equivalent Zn(1)O4 tetrahedra, and faces with four equivalent Y(1)O6 octahedra. There are three shorter (3.01 Å) and three longer (3.37 Å) Ba(1)-O(1) bond lengths. All Ba(1)-O(2) bond lengths are 3.22 Å. Y(1) is bonded to three equivalent O(1) and three equivalent O(2) atoms to form YO6 octahedra that share corners with three equivalent Co(1)O4 tetrahedra, corners with nine equivalent Zn(1)O4 tetrahedra, and faces with four equivalent Ba(1)O12 cuboctahedra. All Y(1)-O(1) bond lengths are 2.25 Å. All Y(1)-O(2) bond lengths are 2.31 Å. Co(1) is bonded to one O(3) and three equivalent O(2) atoms to form CoO4 tetrahedra that share corners with three equivalent Y(1)O6 octahedra, corners with six equivalent Zn(1)O4 tetrahedra, and edges with three equivalent Ba(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles are 52°. The Co(1)-O(3) bond length is 1.92 Å. All Co(1)-O(2) bond lengths are 1.88 Å. Zn(1) is bonded to one O(2), one O(3), and two equivalent O(1) atoms to form ZnO4 tetrahedra that share corners with three equivalent Y(1)O6 octahedra, corners with two equivalent Co(1)O4 tetrahedra, corners with four equivalent Zn(1)O4 tetrahedra, and edges with three equivalent Ba(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 54-60°. The Zn(1)-O(2) bond length is 2.01 Å. The Zn(1)-O(3) bond length is 2.01 Å. Both Zn(1)-O(1) bond lengths are 1.95 Å. There are three inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to two equivalent Ba(1), one Y(1), and two equivalent Zn(1) atoms. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to two equivalent Ba(1), one Y(1), one Co(1), and one Zn(1) atom. In the third O site, O(3) is bonded in a tetrahedral geometry to one Co(1) and three equivalent Zn(1) atoms.