data_[As2Pt1Pb1Se1]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  As  2.1800  1.1500  0.6600
  Pt  2.2800  1.3500  0.8050
  Pb  2.3300  1.8000  1.1225
  Se  2.5500  1.1500  1.0133
]
_symmetry_space_group_name_H-M [P4/mmm]
_cell_length_a [4.8565]
_cell_length_b [4.8565]
_cell_length_c [5.4027]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [123]
_chemical_formula_structural [As2PtPbSe]
_chemical_formula_sum '[As2 Pt1 Pb1 Se1]'
_cell_volume [127.4248]
_cell_formula_units_Z [1]
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
[
  As  As0  2  0.0000  0.5000  0.0000  1
  Pt  Pt1  1  0.0000  0.0000  0.0000  1
  Pb  Pb2  1  0.5000  0.5000  0.5000  1
  Se  Se3  1  0.0000  0.0000  0.5000  1
]