The compound described by Ho2(SeO3)3 crystallizes in the hexagonal P6_3/m space group. Ho(1) is bonded to three equivalent O(1) and three equivalent O(2) atoms to form distorted face-sharing HoO6 octahedra. Se(1) is bonded in a trigonal non-coplanar geometry to one O(2) and two equivalent O(1) atoms. There are two inequivalent O sites. In the first O site, O(1) is bonded in a bent 150 degrees geometry to one Ho(1) and one Se(1) atom. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to two equivalent Ho(1) and one Se(1) atom. is represented by the CIF card [CIF]
data_Ho2(SeO3)3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.534
_cell_length_b   8.534
_cell_length_c   8.189
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   516.476
_cell_formula_units_Z   2
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
loop_
 _atom_site_type_symbol
 _atom_site_label
 _atom_site_symmetry_multiplicity
 _atom_site_fract_x
 _atom_site_fract_y
 _atom_site_fract_z
 _atom_site_occupancy
  Ho  Ho0  1  0.333  0.667  0.039  1.0
  Ho  Ho1  1  0.333  0.667  0.461  1.0
  Ho  Ho2  1  0.667  0.333  0.539  1.0
  Ho  Ho3  1  0.667  0.333  0.961  1.0
  Se  Se4  1  0.029  0.733  0.750  1.0
  Se  Se5  1  0.267  0.297  0.750  1.0
  Se  Se6  1  0.703  0.971  0.750  1.0
  Se  Se7  1  0.297  0.029  0.250  1.0
  Se  Se8  1  0.733  0.703  0.250  1.0
  Se  Se9  1  0.971  0.267  0.250  1.0
  O  O10  1  0.162  0.750  0.913  1.0
  O  O11  1  0.162  0.750  0.587  1.0
  O  O12  1  0.130  0.500  0.250  1.0
  O  O13  1  0.371  0.870  0.250  1.0
  O  O14  1  0.250  0.411  0.587  1.0
  O  O15  1  0.250  0.411  0.913  1.0
  O  O16  1  0.589  0.838  0.587  1.0
  O  O17  1  0.589  0.838  0.913  1.0
  O  O18  1  0.500  0.629  0.250  1.0
  O  O19  1  0.500  0.371  0.750  1.0
  O  O20  1  0.411  0.162  0.413  1.0
  O  O21  1  0.411  0.162  0.087  1.0
  O  O22  1  0.750  0.589  0.087  1.0
  O  O23  1  0.750  0.589  0.413  1.0
  O  O24  1  0.629  0.130  0.750  1.0
  O  O25  1  0.870  0.500  0.750  1.0
  O  O26  1  0.838  0.250  0.087  1.0
  O  O27  1  0.838  0.250  0.413  1.0
[/CIF]
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The compound described by Ho2(SeO3)3 crystallizes in the hexagonal P6_3/m space group. Ho(1) is bonded to three equivalent O(1) and three equivalent O(2) atoms to form distorted face-sharing HoO6 octahedra. Se(1) is bonded in a trigonal non-coplanar geometry to one O(2) and two equivalent O(1) atoms. There are two inequivalent O sites. In the first O site, O(1) is bonded in a bent 150 degrees geometry to one Ho(1) and one Se(1) atom. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to two equivalent Ho(1) and one Se(1) atom. is represented by the CIF card [CIF]
data_Ho2(SeO3)3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.534
_cell_length_b   8.534
_cell_length_c   8.189
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   516.476
_cell_formula_units_Z   2
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
loop_
 _atom_site_type_symbol
 _atom_site_label
 _atom_site_symmetry_multiplicity
 _atom_site_fract_x
 _atom_site_fract_y
 _atom_site_fract_z
 _atom_site_occupancy
  Ho  Ho0  1  0.333  0.667  0.039  1.0
  Ho  Ho1  1  0.333  0.667  0.461  1.0
  Ho  Ho2  1  0.667  0.333  0.539  1.0
  Ho  Ho3  1  0.667  0.333  0.961  1.0
  Se  Se4  1  0.029  0.733  0.750  1.0
  Se  Se5  1  0.267  0.297  0.750  1.0
  Se  Se6  1  0.703  0.971  0.750  1.0
  Se  Se7  1  0.297  0.029  0.250  1.0
  Se  Se8  1  0.733  0.703  0.250  1.0
  Se  Se9  1  0.971  0.267  0.250  1.0
  O  O10  1  0.162  0.750  0.913  1.0
  O  O11  1  0.162  0.750  0.587  1.0
  O  O12  1  0.130  0.500  0.250  1.0
  O  O13  1  0.371  0.870  0.250  1.0
  O  O14  1  0.250  0.411  0.587  1.0
  O  O15  1  0.250  0.411  0.913  1.0
  O  O16  1  0.589  0.838  0.587  1.0
  O  O17  1  0.589  0.838  0.913  1.0
  O  O18  1  0.500  0.629  0.250  1.0
  O  O19  1  0.500  0.371  0.750  1.0
  O  O20  1  0.411  0.162  0.413  1.0
  O  O21  1  0.411  0.162  0.087  1.0
  O  O22  1  0.750  0.589  0.087  1.0
  O  O23  1  0.750  0.589  0.413  1.0
  O  O24  1  0.629  0.130  0.750  1.0
  O  O25  1  0.870  0.500  0.750  1.0
  O  O26  1  0.838  0.250  0.087  1.0
  O  O27  1  0.838  0.250  0.413  1.0
[/CIF]
.