data_[Nd12Sb6Pb2Se4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Nd  1.1400  1.8500  1.2765
  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 [C2/m]
_cell_length_a [19.3425]
_cell_length_b [4.4368]
_cell_length_c [8.9089]
_cell_angle_alpha [90.0000]
_cell_angle_beta [102.9249]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Nd6Sb3PbSe2]
_chemical_formula_sum '[Nd12 Sb6 Pb2 Se4]'
_cell_volume [745.1832]
_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
[
  Nd  Nd0  4  0.0036  0.0000  0.2542  1.0
  Nd  Nd1  4  0.1683  0.5000  0.5803  1.0
  Nd  Nd2  4  0.1685  0.5000  0.0887  1.0
  Sb  Sb3  4  0.1653  0.0000  0.8310  1.0
  Sb  Sb4  2  0.0000  0.5000  0.5000  1.0
  Pb  Pb5  2  0.0000  0.5000  0.0000  1.0
  Se  Se6  4  0.1689  0.0000  0.3372  1.0
]