The structure described by Pr2Bi crystallizes in the tetragonal I4/mmm space group. There are two inequivalent Pr sites. In the first Pr site, Pr(1) is bonded in a 8-coordinate geometry to four equivalent Pr(1) and four equivalent Bi(1) atoms. In the second Pr site, Pr(2) is bonded to five equivalent Bi(1) atoms to form a mixture of distorted corner and edge-sharing PrBi5 trigonal bipyramids. Bi(1) is bonded in a 9-coordinate geometry to four equivalent Pr(1) and five equivalent Pr(2) atoms. is represented by the CIF card [CIF]
data_Pr2Bi
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.743
_cell_length_b   9.743
_cell_length_c   9.743
_cell_angle_alpha   152.291
_cell_angle_beta   152.291
_cell_angle_gamma   39.588
_symmetry_Int_Tables_number   1
_cell_volume   199.564
_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
  Pr  Pr0  1  0.000  0.500  0.500  1.0
  Pr  Pr1  1  0.500  0.000  0.500  1.0
  Pr  Pr2  1  0.680  0.680  0.000  1.0
  Pr  Pr3  1  0.320  0.320  0.000  1.0
  Bi  Bi4  1  0.862  0.862  0.000  1.0
  Bi  Bi5  1  0.138  0.138  0.000  1.0
[/CIF]
.
The structure described by Pr2Bi crystallizes in the tetragonal I4/mmm space group. There are two inequivalent Pr sites. In the first Pr site, Pr(1) is bonded in a 8-coordinate geometry to four equivalent Pr(1) and four equivalent Bi(1) atoms. In the second Pr site, Pr(2) is bonded to five equivalent Bi(1) atoms to form a mixture of distorted corner and edge-sharing PrBi5 trigonal bipyramids. Bi(1) is bonded in a 9-coordinate geometry to four equivalent Pr(1) and five equivalent Pr(2) atoms. is represented by the CIF card [CIF]
data_Pr2Bi
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.743
_cell_length_b   9.743
_cell_length_c   9.743
_cell_angle_alpha   152.291
_cell_angle_beta   152.291
_cell_angle_gamma   39.588
_symmetry_Int_Tables_number   1
_cell_volume   199.564
_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
  Pr  Pr0  1  0.000  0.500  0.500  1.0
  Pr  Pr1  1  0.500  0.000  0.500  1.0
  Pr  Pr2  1  0.680  0.680  0.000  1.0
  Pr  Pr3  1  0.320  0.320  0.000  1.0
  Bi  Bi4  1  0.862  0.862  0.000  1.0
  Bi  Bi5  1  0.138  0.138  0.000  1.0
[/CIF]
.