The structure described by Y2SeO2 is alpha bismuth trifluoride-derived structured and crystallizes in the tetragonal I4/mmm space group. Y(1) is bonded in a 4-coordinate geometry to four equivalent Se(1) and four equivalent O(1) atoms. Se(1) is bonded in a body-centered cubic geometry to eight equivalent Y(1) atoms. O(1) is bonded to four equivalent Y(1) atoms to form a mixture of corner and edge-sharing OY4 tetrahedra. is represented by the CIF file [CIF]
data_Y2SeO2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.674
_cell_length_b   6.674
_cell_length_c   6.674
_cell_angle_alpha   146.449
_cell_angle_beta   146.449
_cell_angle_gamma   48.180
_symmetry_Int_Tables_number   1
_cell_volume   90.416
_cell_formula_units_Z   1
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  0.343  0.343  0.000  1.0
  Y  Y1  1  0.657  0.657  0.000  1.0
  Se  Se2  1  0.000  0.000  0.000  1.0
  O  O3  1  0.750  0.250  0.500  1.0
  O  O4  1  0.250  0.750  0.500  1.0
[/CIF]
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The structure described by Y2SeO2 is alpha bismuth trifluoride-derived structured and crystallizes in the tetragonal I4/mmm space group. Y(1) is bonded in a 4-coordinate geometry to four equivalent Se(1) and four equivalent O(1) atoms. Se(1) is bonded in a body-centered cubic geometry to eight equivalent Y(1) atoms. O(1) is bonded to four equivalent Y(1) atoms to form a mixture of corner and edge-sharing OY4 tetrahedra. is represented by the CIF file [CIF]
data_Y2SeO2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.674
_cell_length_b   6.674
_cell_length_c   6.674
_cell_angle_alpha   146.449
_cell_angle_beta   146.449
_cell_angle_gamma   48.180
_symmetry_Int_Tables_number   1
_cell_volume   90.416
_cell_formula_units_Z   1
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  0.343  0.343  0.000  1.0
  Y  Y1  1  0.657  0.657  0.000  1.0
  Se  Se2  1  0.000  0.000  0.000  1.0
  O  O3  1  0.750  0.250  0.500  1.0
  O  O4  1  0.250  0.750  0.500  1.0
[/CIF]
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