data_Bi2BAs
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.21
_cell_length_b   7.21
_cell_length_c   7.21
_cell_angle_alpha   31.5
_cell_angle_beta   31.5
_cell_angle_gamma   31.5
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Bi2BAs
_chemical_formula_sum   'Bi2 B1 As1'
_cell_volume   90.92
_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
  Bi  Bi2  1  0.0  0.0  0.42  1.0
  Bi  Bi3  1  0.0  0.0  0.13  1.0
  B  B1  1  0.0  0.0  0.0  1.0
  As  As0  1  0.0  0.0  0.27  1.0

data_Bi2BAs
_symmetry_space_group_name_H-M   Cm
_cell_length_a   6.78
_cell_length_b   3.92
_cell_length_c   7.21
_cell_angle_alpha   90.0
_cell_angle_beta   108.27
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   Bi2BAs
_chemical_formula_sum   'Bi4 B2 As2'
_cell_volume   181.84
_cell_formula_units_Z   2
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  'x, -y, z'
  3  'x+1/2, y+1/2, z'
  4  'x+1/2, -y+1/2, 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
  Bi  Bi0  2  0.0  0.0  0.87  1.0
  Bi  Bi1  2  0.0  0.0  0.58  1.0
  B  B2  2  0.0  0.0  0.0  1.0
  As  As3  2  0.0  0.0  0.73  1.0

Bi Bi B As