The crystal structure described by YCr2O2 crystallizes in the tetragonal I4_1/amd space group. Y(1) is bonded in a square co-planar geometry to four equivalent O(1) atoms. Cr(1) is bonded in a 3-coordinate geometry to three equivalent O(1) atoms. O(1) is bonded to two equivalent Y(1) and three equivalent Cr(1) atoms to form a mixture of distorted corner and edge-sharing OY2Cr3 trigonal bipyramids. is represented by the Crystallographic Information File (CIF) [CIF]
data_YCr2O2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.477
_cell_length_b   9.477
_cell_length_c   9.477
_cell_angle_alpha   140.524
_cell_angle_beta   140.524
_cell_angle_gamma   57.058
_symmetry_Int_Tables_number   1
_cell_volume   341.159
_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
  Y  Y0  1  0.875  0.125  0.250  1.0
  Y  Y1  1  0.875  0.625  0.750  1.0
  Y  Y2  1  0.375  0.125  0.250  1.0
  Y  Y3  1  0.875  0.125  0.750  1.0
  Cr  Cr4  1  0.456  0.185  0.729  1.0
  Cr  Cr5  1  0.456  0.728  0.271  1.0
  Cr  Cr6  1  0.478  0.706  0.771  1.0
  Cr  Cr7  1  0.294  0.522  0.229  1.0
  Cr  Cr8  1  0.294  0.065  0.771  1.0
  Cr  Cr9  1  0.935  0.706  0.229  1.0
  Cr  Cr10  1  0.272  0.544  0.729  1.0
  Cr  Cr11  1  0.815  0.544  0.271  1.0
  O  O12  1  0.587  0.322  0.735  1.0
  O  O13  1  0.587  0.852  0.265  1.0
  O  O14  1  0.602  0.837  0.765  1.0
  O  O15  1  0.163  0.398  0.235  1.0
  O  O16  1  0.163  0.928  0.765  1.0
  O  O17  1  0.072  0.837  0.235  1.0
  O  O18  1  0.148  0.413  0.735  1.0
  O  O19  1  0.678  0.413  0.265  1.0
[/CIF]
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The crystal structure described by YCr2O2 crystallizes in the tetragonal I4_1/amd space group. Y(1) is bonded in a square co-planar geometry to four equivalent O(1) atoms. Cr(1) is bonded in a 3-coordinate geometry to three equivalent O(1) atoms. O(1) is bonded to two equivalent Y(1) and three equivalent Cr(1) atoms to form a mixture of distorted corner and edge-sharing OY2Cr3 trigonal bipyramids. is represented by the Crystallographic Information File (CIF) [CIF]
data_YCr2O2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.477
_cell_length_b   9.477
_cell_length_c   9.477
_cell_angle_alpha   140.524
_cell_angle_beta   140.524
_cell_angle_gamma   57.058
_symmetry_Int_Tables_number   1
_cell_volume   341.159
_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
  Y  Y0  1  0.875  0.125  0.250  1.0
  Y  Y1  1  0.875  0.625  0.750  1.0
  Y  Y2  1  0.375  0.125  0.250  1.0
  Y  Y3  1  0.875  0.125  0.750  1.0
  Cr  Cr4  1  0.456  0.185  0.729  1.0
  Cr  Cr5  1  0.456  0.728  0.271  1.0
  Cr  Cr6  1  0.478  0.706  0.771  1.0
  Cr  Cr7  1  0.294  0.522  0.229  1.0
  Cr  Cr8  1  0.294  0.065  0.771  1.0
  Cr  Cr9  1  0.935  0.706  0.229  1.0
  Cr  Cr10  1  0.272  0.544  0.729  1.0
  Cr  Cr11  1  0.815  0.544  0.271  1.0
  O  O12  1  0.587  0.322  0.735  1.0
  O  O13  1  0.587  0.852  0.265  1.0
  O  O14  1  0.602  0.837  0.765  1.0
  O  O15  1  0.163  0.398  0.235  1.0
  O  O16  1  0.163  0.928  0.765  1.0
  O  O17  1  0.072  0.837  0.235  1.0
  O  O18  1  0.148  0.413  0.735  1.0
  O  O19  1  0.678  0.413  0.265  1.0
[/CIF]
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