data_AgBi
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.42
_cell_length_b   3.42
_cell_length_c   4.98
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   AgBi
_chemical_formula_sum   'Ag1 Bi1'
_cell_volume   50.58
_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
  Ag  Ag0  1  0.0  0.0  0.0  1.0
  Bi  Bi1  1  0.71  0.99  0.49  1.0

data_AgBi
_symmetry_space_group_name_H-M   Cm
_cell_length_a   3.42
_cell_length_b   5.93
_cell_length_c   4.98
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   AgBi
_chemical_formula_sum   'Ag2 Bi2'
_cell_volume   101.15
_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, y, -z'
  4  'x, -y, z'
  5  'x+1/2, y+1/2, z'
  6  'x+1/2, -y+1/2, -z'
  7  'x+1/2, y+1/2, -z'
  8  '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
  Ag  Ag0  2  0.0  0.0  0.0  1.0
  Bi  Bi1  2  0.22  0.5  0.49  1.0

Ag Bi
Ag Bi 0 1 - - - 0 1 - - o 0 1 o - o 0 0 + + o 0 0 o + o 0 0 + o o 1 1 + + o 1 1 o + o 1 1 + o o 