data_CuIrPt
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.24
_cell_length_b   6.98
_cell_length_c   2.71
_cell_angle_alpha   84.42
_cell_angle_beta   73.73
_cell_angle_gamma   21.84
_symmetry_Int_Tables_number   1
_chemical_formula_structural   CuIrPt
_chemical_formula_sum   'Cu1 Ir1 Pt1'
_cell_volume   43.44
_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  0.35  0.34  0.01  1.0
  Ir  Ir1  1  0.35  0.34  0.05  1.0
  Pt  Pt2  1  0.35  0.34  0.63  1.0

data_CuIrPt
_symmetry_space_group_name_H-M   Cm
_cell_length_a   2.71
_cell_length_b   13.7
_cell_length_c   2.71
_cell_angle_alpha   90.0
_cell_angle_beta   120.05
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   CuIrPt
_chemical_formula_sum   'Cu2 Ir2 Pt2'
_cell_volume   86.88
_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+1/2, y+1/2, z'
  4  '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
  Cu  Cu0  2  0.34  0.0  0.63  1.0
  Ir  Ir1  2  0.34  0.0  0.6  1.0
  Pt  Pt2  2  0.34  0.0  0.01  1.0

Cu Ir Pt
Cu Ir Pt 0 1 o o o 0 2 o o - 1 2 o o - 