data_Bi2Os
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.9
_cell_length_b   6.9
_cell_length_c   5.72
_cell_angle_alpha   102.18
_cell_angle_beta   102.18
_cell_angle_gamma   34.34
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Bi2Os
_chemical_formula_sum   'Bi4 Os2'
_cell_volume   149.78
_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
  Bi  Bi0  1  0.27  0.0  0.0  1.0
  Bi  Bi1  1  0.57  0.0  0.72  1.0
  Bi  Bi2  1  0.35  0.0  0.86  1.0
  Bi  Bi3  1  0.65  0.0  0.57  1.0
  Os  Os4  1  0.75  0.0  0.61  1.0
  Os  Os5  1  0.17  0.0  0.97  1.0

data_Bi2Os
_symmetry_space_group_name_H-M   P-1
_cell_length_a   4.07
_cell_length_b   5.72
_cell_length_c   6.9
_cell_angle_alpha   102.18
_cell_angle_beta   107.17
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   2
_chemical_formula_structural   Bi2Os
_chemical_formula_sum   'Bi4 Os2'
_cell_volume   149.78
_cell_formula_units_Z   2
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  '-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  Bi0  2  0.0  0.28  0.19  1.0
  Bi  Bi1  2  0.0  0.43  0.11  1.0
  Os  Os2  2  0.0  0.32  0.29  1.0

Bi Bi Bi Bi Os Os