data_[Cu2Ag2Pb2S4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Cu  1.9000  1.3500  0.8200
  Ag  1.9300  1.6000  1.0867
  Pb  2.3300  1.8000  1.1225
  S  2.5800  1.0000  0.8800
]
_symmetry_space_group_name_H-M [P2/c]
_cell_length_a [6.8430]
_cell_length_b [4.5316]
_cell_length_c [7.4011]
_cell_angle_alpha [90.0000]
_cell_angle_beta [100.8156]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [13]
_chemical_formula_structural [CuAgPbS2]
_chemical_formula_sum '[Cu2 Ag2 Pb2 S4]'
_cell_volume [225.4290]
_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
[
  Cu  Cu0  2  0.0000  0.0000  0.0000  1.0
  Ag  Ag1  2  0.0000  0.4973  0.2500  1.0
  Pb  Pb2  2  0.5000  0.1842  0.7500  1.0
  S  S3  4  0.2598  0.2799  0.0450  1.0
]