data_[Cu2Sb2Pb2Se6]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Cu  1.9000  1.3500  0.8200
  Sb  2.0500  1.4500  0.8300
  Pb  2.3300  1.8000  1.1225
  Se  2.5500  1.1500  1.0133
]
_symmetry_space_group_name_H-M [P2_1/m]
_cell_length_a [8.6935]
_cell_length_b [4.0852]
_cell_length_c [9.0030]
_cell_angle_alpha [90.0000]
_cell_angle_beta [101.2467]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [11]
_chemical_formula_structural [CuSbPbSe3]
_chemical_formula_sum '[Cu2 Sb2 Pb2 Se6]'
_cell_volume [313.6023]
_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  0.0688  0.7500  0.5759  1
  Sb  Sb1  2  0.3354  0.2500  0.8535  1
  Pb  Pb2  2  0.1722  0.7500  0.2545  1
  Se  Se3  2  0.1111  0.7500  0.8642  1
  Se  Se4  2  0.2233  0.2500  0.5124  1
  Se  Se5  2  0.4243  0.2500  0.1655  1
]