HoZn(BiO3)2 crystallizes in the orthorhombic Pmn2_1 space group. Ho(1) is bonded in a 6-coordinate geometry to one O(1), one O(4), two equivalent O(2), and two equivalent O(3) atoms. Zn(1) is bonded in a rectangular see-saw-like geometry to one O(1), one O(4), and two equivalent O(3) atoms. Bi(1) is bonded to one O(1), one O(4), two equivalent O(2), and two equivalent O(3) atoms to form distorted corner-sharing BiO6 octahedra. The corner-sharing octahedral tilt angles range from 37-57°. There are four inequivalent O sites. In the first O site, O(1) is bonded to one Ho(1), one Zn(1), and two equivalent Bi(1) atoms to form a mixture of edge and corner-sharing OHoZnBi2 trigonal pyramids. In the second O site, O(2) is bonded in a trigonal planar geometry to one Ho(1) and two equivalent Bi(1) atoms. In the third O site, O(3) is bonded in a distorted rectangular see-saw-like geometry to one Ho(1), one Zn(1), and two equivalent Bi(1) atoms. In the fourth O site, O(4) is bonded to one Ho(1), one Zn(1), and two equivalent Bi(1) atoms to form a mixture of edge and corner-sharing OHoZnBi2 trigonal pyramids.
HoZn(BiO3)2 crystallizes in the orthorhombic Pmn2_1 space group. Ho(1) is bonded in a 6-coordinate geometry to one O(1), one O(4), two equivalent O(2), and two equivalent O(3) atoms. The Ho(1)-O(1) bond length is 2.24 Å. The Ho(1)-O(4) bond length is 2.42 Å. Both Ho(1)-O(2) bond lengths are 2.24 Å. Both Ho(1)-O(3) bond lengths are 2.38 Å. Zn(1) is bonded in a rectangular see-saw-like geometry to one O(1), one O(4), and two equivalent O(3) atoms. The Zn(1)-O(1) bond length is 2.22 Å. The Zn(1)-O(4) bond length is 1.92 Å. Both Zn(1)-O(3) bond lengths are 1.98 Å. Bi(1) is bonded to one O(1), one O(4), two equivalent O(2), and two equivalent O(3) atoms to form distorted corner-sharing BiO6 octahedra. The corner-sharing octahedral tilt angles range from 37-57°. The Bi(1)-O(1) bond length is 2.37 Å. The Bi(1)-O(4) bond length is 2.33 Å. There is one shorter (2.24 Å) and one longer (2.25 Å) Bi(1)-O(2) bond length. There is one shorter (2.39 Å) and one longer (2.42 Å) Bi(1)-O(3) bond length. There are four inequivalent O sites. In the first O site, O(1) is bonded to one Ho(1), one Zn(1), and two equivalent Bi(1) atoms to form a mixture of edge and corner-sharing OHoZnBi2 trigonal pyramids. In the second O site, O(2) is bonded in a trigonal planar geometry to one Ho(1) and two equivalent Bi(1) atoms. In the third O site, O(3) is bonded in a distorted rectangular see-saw-like geometry to one Ho(1), one Zn(1), and two equivalent Bi(1) atoms. In the fourth O site, O(4) is bonded to one Ho(1), one Zn(1), and two equivalent Bi(1) atoms to form a mixture of edge and corner-sharing OHoZnBi2 trigonal pyramids.