data_[Na4Ca12Pt4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Ca  1.0000  1.8000  1.1400
  Pt  2.2800  1.3500  0.8050
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [20.6161]
_cell_length_b [3.8967]
_cell_length_c [8.5499]
_cell_angle_alpha [90.0000]
_cell_angle_beta [91.6043]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [NaCa3Pt]
_chemical_formula_sum '[Na4 Ca12 Pt4]'
_cell_volume [686.5802]
_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
[
  Na  Na0  4  0.2151  0.0000  0.8457  1.0
  Ca  Ca1  4  0.0351  0.0000  0.6893  1.0
  Ca  Ca2  4  0.0901  0.5000  0.0857  1.0
  Ca  Ca3  4  0.1662  0.0000  0.4161  1.0
  Pt  Pt4  4  0.0618  0.5000  0.4184  1.0
]