data_Cu2SiBi
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.23
_cell_length_b   4.03
_cell_length_c   5.72
_cell_angle_alpha   90.0
_cell_angle_beta   93.35
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Cu2SiBi
_chemical_formula_sum   'Cu2 Si1 Bi1'
_cell_volume   74.32
_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
  Cu  Cu1  1  0.45  0.01  0.73  1.0
  Cu  Cu2  1  0.45  0.01  0.99  1.0
  Si  Si3  1  0.0  0.0  0.0  1.0
  Bi  Bi0  1  0.45  0.0  0.86  1.0

data_Cu2SiBi
_symmetry_space_group_name_H-M   P1
_cell_length_a   3.23
_cell_length_b   4.03
_cell_length_c   5.72
_cell_angle_alpha   90.0
_cell_angle_beta   93.35
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Cu2SiBi
_chemical_formula_sum   'Cu2 Si1 Bi1'
_cell_volume   74.32
_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
  Si  Si0  1  0.0  0.0  0.0  1.0
  Cu  Cu1  1  0.45  0.01  0.99  1.0
  Cu  Cu2  1  0.45  0.01  0.73  1.0
  Bi  Bi3  1  0.45  0.0  0.86  1.0

Cu Cu Si Bi