The structure described by TbBi3 crystallizes in the tetragonal I4/mmm space group. Tb(1) is bonded to four equivalent Bi(2) and eight equivalent Bi(1) atoms to form a mixture of face, corner, and edge-sharing TbBi12 cuboctahedra. There are two inequivalent Bi sites. In the first Bi site, Bi(1) is bonded in a 12-coordinate geometry to four equivalent Tb(1), four equivalent Bi(1), and four equivalent Bi(2) atoms. In the second Bi site, Bi(2) is bonded in a square co-planar geometry to four equivalent Tb(1) and eight equivalent Bi(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_TbBi3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.433
_cell_length_b   6.433
_cell_length_c   6.433
_cell_angle_alpha   137.276
_cell_angle_beta   137.276
_cell_angle_gamma   62.014
_symmetry_Int_Tables_number   1
_cell_volume   121.116
_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  0.000  0.000  0.000  1.0
  Bi  Bi1  1  0.750  0.250  0.500  1.0
  Bi  Bi2  1  0.250  0.750  0.500  1.0
  Bi  Bi3  1  0.500  0.500  0.000  1.0
[/CIF]
.
The structure described by TbBi3 crystallizes in the tetragonal I4/mmm space group. Tb(1) is bonded to four equivalent Bi(2) and eight equivalent Bi(1) atoms to form a mixture of face, corner, and edge-sharing TbBi12 cuboctahedra. There are two inequivalent Bi sites. In the first Bi site, Bi(1) is bonded in a 12-coordinate geometry to four equivalent Tb(1), four equivalent Bi(1), and four equivalent Bi(2) atoms. In the second Bi site, Bi(2) is bonded in a square co-planar geometry to four equivalent Tb(1) and eight equivalent Bi(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_TbBi3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.433
_cell_length_b   6.433
_cell_length_c   6.433
_cell_angle_alpha   137.276
_cell_angle_beta   137.276
_cell_angle_gamma   62.014
_symmetry_Int_Tables_number   1
_cell_volume   121.116
_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  0.000  0.000  0.000  1.0
  Bi  Bi1  1  0.750  0.250  0.500  1.0
  Bi  Bi2  1  0.250  0.750  0.500  1.0
  Bi  Bi3  1  0.500  0.500  0.000  1.0
[/CIF]
.