The material structure described by Ba2Bi crystallizes in the tetragonal I4/mmm space group. There are two inequivalent Ba sites. In the first Ba site, Ba(1) is bonded in a distorted square co-planar geometry to four equivalent Bi(1) atoms. In the second Ba site, Ba(2) is bonded to five equivalent Bi(1) atoms to form a mixture of distorted edge and corner-sharing BaBi5 trigonal bipyramids. Bi(1) is bonded in a 9-coordinate geometry to four equivalent Ba(1) and five equivalent Ba(2) atoms. is represented by the CIF card [CIF]
data_Ba2Bi
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.354
_cell_length_b   5.354
_cell_length_c   10.380
_cell_angle_alpha   104.946
_cell_angle_beta   104.946
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   277.056
_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
  Ba  Ba0  1  0.500  0.000  0.000  1.0
  Ba  Ba1  1  0.680  0.680  0.360  1.0
  Ba  Ba2  1  0.320  0.320  0.640  1.0
  Ba  Ba3  1  0.000  0.500  0.000  1.0
  Bi  Bi4  1  0.866  0.866  0.732  1.0
  Bi  Bi5  1  0.134  0.134  0.268  1.0
[/CIF]
.
The material structure described by Ba2Bi crystallizes in the tetragonal I4/mmm space group. There are two inequivalent Ba sites. In the first Ba site, Ba(1) is bonded in a distorted square co-planar geometry to four equivalent Bi(1) atoms. In the second Ba site, Ba(2) is bonded to five equivalent Bi(1) atoms to form a mixture of distorted edge and corner-sharing BaBi5 trigonal bipyramids. Bi(1) is bonded in a 9-coordinate geometry to four equivalent Ba(1) and five equivalent Ba(2) atoms. is represented by the CIF card [CIF]
data_Ba2Bi
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.354
_cell_length_b   5.354
_cell_length_c   10.380
_cell_angle_alpha   104.946
_cell_angle_beta   104.946
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   277.056
_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
  Ba  Ba0  1  0.500  0.000  0.000  1.0
  Ba  Ba1  1  0.680  0.680  0.360  1.0
  Ba  Ba2  1  0.320  0.320  0.640  1.0
  Ba  Ba3  1  0.000  0.500  0.000  1.0
  Bi  Bi4  1  0.866  0.866  0.732  1.0
  Bi  Bi5  1  0.134  0.134  0.268  1.0
[/CIF]
.