data_[Sn8Ge4Pt8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sn  1.9600  1.4500  0.8300
  Ge  2.0100  1.2500  0.7700
  Pt  2.2800  1.3500  0.8050
]
_symmetry_space_group_name_H-M [Cmc2_1]
_cell_length_a [3.4336]
_cell_length_b [17.5643]
_cell_length_c [7.0533]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [36]
_chemical_formula_structural [Sn2GePt2]
_chemical_formula_sum '[Sn8 Ge4 Pt8]'
_cell_volume [425.3766]
_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
[
  Sn  Sn0  4  0.0000  0.0394  0.7670  1
  Sn  Sn1  4  0.0000  0.1964  0.9977  1
  Ge  Ge2  4  0.0000  0.3737  0.9039  1
  Pt  Pt3  4  0.0000  0.1837  0.6074  1
  Pt  Pt4  4  0.0000  0.4344  0.5896  1
]