data_[Sr2Si2Ge2Pt4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sr  0.9500  2.0000  1.3200
  Si  1.9000  1.1000  0.5400
  Ge  2.0100  1.2500  0.7700
  Pt  2.2800  1.3500  0.8050
]
_symmetry_space_group_name_H-M [P4/nmm]
_cell_length_a [4.3618]
_cell_length_b [4.3618]
_cell_length_c [10.2156]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [129]
_chemical_formula_structural [SrSiGePt2]
_chemical_formula_sum '[Sr2 Si2 Ge2 Pt4]'
_cell_volume [194.3522]
_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
[
  Sr  Sr0  2  0.0000  0.5000  0.7437  1
  Si  Si1  2  0.0000  0.0000  0.5000  1
  Ge  Ge2  2  0.0000  0.5000  0.1318  1
  Pt  Pt3  2  0.0000  0.0000  0.0000  1
  Pt  Pt4  2  0.0000  0.5000  0.3867  1
]