data_[Au2Se4Cl4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Au  2.5400  1.3500  1.0700
  Se  2.5500  1.1500  1.0133
  Cl  3.1600  1.0000  0.7800
]
_symmetry_space_group_name_H-M [P4/mbm]
_cell_length_a [6.9434]
_cell_length_b [6.9434]
_cell_length_c [5.0482]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [127]
_chemical_formula_structural [Au(SeCl)2]
_chemical_formula_sum '[Au2 Se4 Cl4]'
_cell_volume [243.3794]
_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
[
  Au  Au0  2  0.0000  0.0000  0.0000  1
  Se  Se1  4  0.1597  0.3403  0.0000  1
  Cl  Cl2  4  0.1743  0.3257  0.5000  1
]