data_Cu2PPt
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.55
_cell_length_b   4.55
_cell_length_c   2.82
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   113.56
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Cu2PPt
_chemical_formula_sum   'Cu2 P1 Pt1'
_cell_volume   53.49
_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  Cu0  1  0.25  0.1  0.41  1.0
  Cu  Cu1  1  0.25  0.9  0.41  1.0
  P  P2  1  0.0  0.0  0.0  1.0
  Pt  Pt3  1  0.49  0.0  0.0  1.0

data_Cu2PPt
_symmetry_space_group_name_H-M   P1
_cell_length_a   2.82
_cell_length_b   4.55
_cell_length_c   4.55
_cell_angle_alpha   113.56
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Cu2PPt
_chemical_formula_sum   'Cu2 P1 Pt1'
_cell_volume   53.49
_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  Cu0  1  0.41  0.25  0.1  1.0
  Cu  Cu1  1  0.41  0.25  0.9  1.0
  P  P2  1  0.0  0.0  0.0  1.0
  Pt  Pt3  1  0.0  0.49  0.0  1.0

Cu Cu P Pt
Cu Cu P Pt 0 1 o - o 0 2 o o o 0 3 o o o 1 2 o + o 1 3 o + o 