The structure described by La2Bi crystallizes in the tetragonal I4/mmm space group. There are two inequivalent La sites. In the first La site, La(1) is bonded in a 8-coordinate geometry to four equivalent La(1) and four equivalent Bi(1) atoms. In the second La site, La(2) is bonded to five equivalent Bi(1) atoms to form a mixture of distorted corner and edge-sharing LaBi5 trigonal bipyramids. Bi(1) is bonded in a 9-coordinate geometry to four equivalent La(1) and five equivalent La(2) atoms. is represented by the CIF file [CIF]
data_La2Bi
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.700
_cell_length_b   4.700
_cell_length_c   9.946
_cell_angle_alpha   103.668
_cell_angle_beta   103.668
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   207.077
_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
  La  La0  1  0.500  0.000  0.000  1.0
  La  La1  1  0.000  0.500  0.000  1.0
  La  La2  1  0.681  0.681  0.362  1.0
  La  La3  1  0.319  0.319  0.638  1.0
  Bi  Bi4  1  0.863  0.863  0.726  1.0
  Bi  Bi5  1  0.137  0.137  0.274  1.0
[/CIF]
.
The structure described by La2Bi crystallizes in the tetragonal I4/mmm space group. There are two inequivalent La sites. In the first La site, La(1) is bonded in a 8-coordinate geometry to four equivalent La(1) and four equivalent Bi(1) atoms. In the second La site, La(2) is bonded to five equivalent Bi(1) atoms to form a mixture of distorted corner and edge-sharing LaBi5 trigonal bipyramids. Bi(1) is bonded in a 9-coordinate geometry to four equivalent La(1) and five equivalent La(2) atoms. is represented by the CIF file [CIF]
data_La2Bi
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.700
_cell_length_b   4.700
_cell_length_c   9.946
_cell_angle_alpha   103.668
_cell_angle_beta   103.668
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   207.077
_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
  La  La0  1  0.500  0.000  0.000  1.0
  La  La1  1  0.000  0.500  0.000  1.0
  La  La2  1  0.681  0.681  0.362  1.0
  La  La3  1  0.319  0.319  0.638  1.0
  Bi  Bi4  1  0.863  0.863  0.726  1.0
  Bi  Bi5  1  0.137  0.137  0.274  1.0
[/CIF]
.