data_[Ni8Ir2Pt8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ni  1.9100  1.3500  0.7400
  Ir  2.2000  1.3500  0.7650
  Pt  2.2800  1.3500  0.8050
]
_symmetry_space_group_name_H-M [I4/mmm]
_cell_length_a [8.1013]
_cell_length_b [8.1013]
_cell_length_c [3.7506]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [139]
_chemical_formula_structural [Ni4IrPt4]
_chemical_formula_sum '[Ni8 Ir2 Pt8]'
_cell_volume [246.1535]
_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
[
  Ni  Ni0  8  0.1622  0.1622  0.5000  1
  Ir  Ir1  2  0.0000  0.0000  0.0000  1
  Pt  Pt2  8  0.0000  0.3244  0.0000  1
]