BaHo2O4 crystallizes in the orthorhombic Pnma space group. Ba(1) is bonded in a 8-coordinate geometry to two equivalent O(1), two equivalent O(2), two equivalent O(3), and two equivalent O(4) atoms. There are two inequivalent Ho sites. In the first Ho site, Ho(1) is bonded to one O(4), two equivalent O(2), and three equivalent O(3) atoms to form a mixture of corner and edge-sharing HoO6 octahedra. The corner-sharing octahedral tilt angles range from 50-58°. In the second Ho site, Ho(2) is bonded to one O(2), two equivalent O(4), and three equivalent O(1) atoms to form a mixture of corner and edge-sharing HoO6 octahedra. The corner-sharing octahedral tilt angles range from 50-58°. There are four inequivalent O sites. In the first O site, O(1) is bonded to two equivalent Ba(1) and three equivalent Ho(2) atoms to form a mixture of distorted corner and edge-sharing OBa2Ho3 trigonal bipyramids. In the second O site, O(2) is bonded to two equivalent Ba(1), one Ho(2), and two equivalent Ho(1) atoms to form a mixture of distorted corner and edge-sharing OBa2Ho3 trigonal bipyramids. In the third O site, O(3) is bonded to two equivalent Ba(1) and three equivalent Ho(1) atoms to form a mixture of distorted corner and edge-sharing OBa2Ho3 square pyramids. In the fourth O site, O(4) is bonded in a 5-coordinate geometry to two equivalent Ba(1), one Ho(1), and two equivalent Ho(2) atoms.
BaHo2O4 crystallizes in the orthorhombic Pnma space group. Ba(1) is bonded in a 8-coordinate geometry to two equivalent O(1), two equivalent O(2), two equivalent O(3), and two equivalent O(4) atoms. Both Ba(1)-O(1) bond lengths are 2.73 Å. There is one shorter (2.88 Å) and one longer (2.92 Å) Ba(1)-O(2) bond length. Both Ba(1)-O(3) bond lengths are 2.72 Å. Both Ba(1)-O(4) bond lengths are 2.92 Å. There are two inequivalent Ho sites. In the first Ho site, Ho(1) is bonded to one O(4), two equivalent O(2), and three equivalent O(3) atoms to form a mixture of corner and edge-sharing HoO6 octahedra. The corner-sharing octahedral tilt angles range from 50-58°. The Ho(1)-O(4) bond length is 2.29 Å. Both Ho(1)-O(2) bond lengths are 2.25 Å. There is one shorter (2.28 Å) and two longer (2.33 Å) Ho(1)-O(3) bond lengths. In the second Ho site, Ho(2) is bonded to one O(2), two equivalent O(4), and three equivalent O(1) atoms to form a mixture of corner and edge-sharing HoO6 octahedra. The corner-sharing octahedral tilt angles range from 50-58°. The Ho(2)-O(2) bond length is 2.29 Å. Both Ho(2)-O(4) bond lengths are 2.30 Å. There is one shorter (2.23 Å) and two longer (2.32 Å) Ho(2)-O(1) bond lengths. There are four inequivalent O sites. In the first O site, O(1) is bonded to two equivalent Ba(1) and three equivalent Ho(2) atoms to form a mixture of distorted corner and edge-sharing OBa2Ho3 trigonal bipyramids. In the second O site, O(2) is bonded to two equivalent Ba(1), one Ho(2), and two equivalent Ho(1) atoms to form a mixture of distorted corner and edge-sharing OBa2Ho3 trigonal bipyramids. In the third O site, O(3) is bonded to two equivalent Ba(1) and three equivalent Ho(1) atoms to form a mixture of distorted corner and edge-sharing OBa2Ho3 square pyramids. In the fourth O site, O(4) is bonded in a 5-coordinate geometry to two equivalent Ba(1), one Ho(1), and two equivalent Ho(2) atoms.