The material described by HoCrO2 crystallizes in the tetragonal I4_1/amd space group. Ho(1) is bonded to six equivalent O(1) atoms to form edge-sharing HoO6 octahedra. Cr(1) is bonded in a square co-planar geometry to four equivalent O(1) atoms. O(1) is bonded to three equivalent Ho(1) and two equivalent Cr(1) atoms to form a mixture of distorted corner and edge-sharing OHo3Cr2 trigonal bipyramids. is represented by the CIF card [CIF]
data_HoCrO2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.101
_cell_length_b   6.101
_cell_length_c   7.257
_cell_angle_alpha   114.857
_cell_angle_beta   114.857
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   217.222
_cell_formula_units_Z   4
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  0.625  0.875  0.250  1.0
  Ho  Ho1  1  0.625  0.375  0.250  1.0
  Ho  Ho2  1  0.625  0.375  0.750  1.0
  Ho  Ho3  1  0.125  0.375  0.750  1.0
  Cr  Cr4  1  0.125  0.375  0.250  1.0
  Cr  Cr5  1  0.125  0.875  0.250  1.0
  Cr  Cr6  1  0.125  0.875  0.750  1.0
  Cr  Cr7  1  0.625  0.875  0.750  1.0
  O  O8  1  0.398  0.173  0.347  1.0
  O  O9  1  0.948  0.174  0.347  1.0
  O  O10  1  0.424  0.148  0.847  1.0
  O  O11  1  0.852  0.577  0.153  1.0
  O  O12  1  0.423  0.698  0.847  1.0
  O  O13  1  0.302  0.576  0.153  1.0
  O  O14  1  0.826  0.602  0.653  1.0
  O  O15  1  0.827  0.052  0.653  1.0
[/CIF]
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The material described by HoCrO2 crystallizes in the tetragonal I4_1/amd space group. Ho(1) is bonded to six equivalent O(1) atoms to form edge-sharing HoO6 octahedra. Cr(1) is bonded in a square co-planar geometry to four equivalent O(1) atoms. O(1) is bonded to three equivalent Ho(1) and two equivalent Cr(1) atoms to form a mixture of distorted corner and edge-sharing OHo3Cr2 trigonal bipyramids. is represented by the CIF card [CIF]
data_HoCrO2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.101
_cell_length_b   6.101
_cell_length_c   7.257
_cell_angle_alpha   114.857
_cell_angle_beta   114.857
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   217.222
_cell_formula_units_Z   4
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  0.625  0.875  0.250  1.0
  Ho  Ho1  1  0.625  0.375  0.250  1.0
  Ho  Ho2  1  0.625  0.375  0.750  1.0
  Ho  Ho3  1  0.125  0.375  0.750  1.0
  Cr  Cr4  1  0.125  0.375  0.250  1.0
  Cr  Cr5  1  0.125  0.875  0.250  1.0
  Cr  Cr6  1  0.125  0.875  0.750  1.0
  Cr  Cr7  1  0.625  0.875  0.750  1.0
  O  O8  1  0.398  0.173  0.347  1.0
  O  O9  1  0.948  0.174  0.347  1.0
  O  O10  1  0.424  0.148  0.847  1.0
  O  O11  1  0.852  0.577  0.153  1.0
  O  O12  1  0.423  0.698  0.847  1.0
  O  O13  1  0.302  0.576  0.153  1.0
  O  O14  1  0.826  0.602  0.653  1.0
  O  O15  1  0.827  0.052  0.653  1.0
[/CIF]
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