The structure described by Tb2O2Se crystallizes in the orthorhombic Pnnm space group. Tb(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 Tb(1) atoms. O(1) is bonded to four equivalent Tb(1) atoms to form a mixture of edge and corner-sharing OTb4 tetrahedra. is represented by the CIF card [CIF]
data_Tb2SeO2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.861
_cell_length_b   3.871
_cell_length_c   12.243
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   182.947
_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
  Tb  Tb0  1  0.000  0.070  0.343  1.0
  Tb  Tb1  1  0.500  0.430  0.843  1.0
  Tb  Tb2  1  0.500  0.570  0.157  1.0
  Tb  Tb3  1  0.000  0.930  0.657  1.0
  Se  Se4  1  0.000  0.000  0.000  1.0
  Se  Se5  1  0.500  0.500  0.500  1.0
  O  O6  1  0.500  0.066  0.249  1.0
  O  O7  1  0.000  0.434  0.749  1.0
  O  O8  1  0.000  0.566  0.251  1.0
  O  O9  1  0.500  0.934  0.751  1.0
[/CIF]
.
The structure described by Tb2O2Se crystallizes in the orthorhombic Pnnm space group. Tb(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 Tb(1) atoms. O(1) is bonded to four equivalent Tb(1) atoms to form a mixture of edge and corner-sharing OTb4 tetrahedra. is represented by the CIF card [CIF]
data_Tb2SeO2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.861
_cell_length_b   3.871
_cell_length_c   12.243
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   182.947
_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
  Tb  Tb0  1  0.000  0.070  0.343  1.0
  Tb  Tb1  1  0.500  0.430  0.843  1.0
  Tb  Tb2  1  0.500  0.570  0.157  1.0
  Tb  Tb3  1  0.000  0.930  0.657  1.0
  Se  Se4  1  0.000  0.000  0.000  1.0
  Se  Se5  1  0.500  0.500  0.500  1.0
  O  O6  1  0.500  0.066  0.249  1.0
  O  O7  1  0.000  0.434  0.749  1.0
  O  O8  1  0.000  0.566  0.251  1.0
  O  O9  1  0.500  0.934  0.751  1.0
[/CIF]
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