data_[Nb4Ag12Pt4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Nb  1.6000  1.4500  0.8200
  Ag  1.9300  1.6000  1.0867
  Pt  2.2800  1.3500  0.8050
]
_symmetry_space_group_name_H-M [I4/mcm]
_cell_length_a [6.5810]
_cell_length_b [6.5810]
_cell_length_c [10.2412]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [140]
_chemical_formula_structural [NbAg3Pt]
_chemical_formula_sum '[Nb4 Ag12 Pt4]'
_cell_volume [443.5367]
_cell_formula_units_Z [4]
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
[
  Nb  Nb0  4  0.0000  0.5000  0.2500  1
  Ag  Ag1  8  0.1428  0.3572  0.0000  1
  Ag  Ag2  4  0.0000  0.0000  0.2500  1
  Pt  Pt3  4  0.0000  0.0000  0.0000  1
]