data_PtAu
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.65
_cell_length_b   9.65
_cell_length_c   9.65
_cell_angle_alpha   17.04
_cell_angle_beta   17.04
_cell_angle_gamma   17.04
_symmetry_Int_Tables_number   1
_chemical_formula_structural   PtAu
_chemical_formula_sum   'Pt2 Au2'
_cell_volume   67.25
_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
  Pt  Pt2  1  0.0  0.0  0.61  1.0
  Pt  Pt3  1  0.0  0.0  0.9  1.0
  Au  Au0  1  0.0  0.0  0.78  1.0
  Au  Au1  1  0.0  0.0  0.74  1.0

data_PtAu
_symmetry_space_group_name_H-M   C2/m
_cell_length_a   4.95
_cell_length_b   2.86
_cell_length_c   9.65
_cell_angle_alpha   90.0
_cell_angle_beta   99.85
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   12
_chemical_formula_structural   PtAu
_chemical_formula_sum   'Pt4 Au4'
_cell_volume   134.5
_cell_formula_units_Z   4
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
  Pt  Pt0  4  0.0  0.0  0.14  1.0
  Au  Au1  4  0.0  0.0  0.02  1.0

Pt Pt Au Au