The crystal structure described by Tb2BiO2 crystallizes in the tetragonal I4/mmm space group. Tb(1) is bonded in a 4-coordinate geometry to four equivalent Bi(1) and four equivalent O(1) atoms. Bi(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 corner and edge-sharing OTb4 tetrahedra. is represented by the CIF file [CIF]
data_Tb2BiO2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.879
_cell_length_b   3.879
_cell_length_c   7.299
_cell_angle_alpha   105.411
_cell_angle_beta   105.411
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   101.780
_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
  Tb  Tb0  1  0.668  0.668  0.336  1.0
  Tb  Tb1  1  0.332  0.332  0.664  1.0
  Bi  Bi2  1  0.000  0.000  0.000  1.0
  O  O3  1  0.250  0.750  0.500  1.0
  O  O4  1  0.750  0.250  0.500  1.0
[/CIF]
.
The crystal structure described by Tb2BiO2 crystallizes in the tetragonal I4/mmm space group. Tb(1) is bonded in a 4-coordinate geometry to four equivalent Bi(1) and four equivalent O(1) atoms. Bi(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 corner and edge-sharing OTb4 tetrahedra. is represented by the CIF file [CIF]
data_Tb2BiO2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.879
_cell_length_b   3.879
_cell_length_c   7.299
_cell_angle_alpha   105.411
_cell_angle_beta   105.411
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   101.780
_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
  Tb  Tb0  1  0.668  0.668  0.336  1.0
  Tb  Tb1  1  0.332  0.332  0.664  1.0
  Bi  Bi2  1  0.000  0.000  0.000  1.0
  O  O3  1  0.250  0.750  0.500  1.0
  O  O4  1  0.750  0.250  0.500  1.0
[/CIF]
.