data_[La8Nd6Se16]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  La  1.1000  1.9500  1.1720
  Nd  1.1400  1.8500  1.2765
  Se  2.5500  1.1500  1.0133
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [12.0699]
_cell_length_b [12.0832]
_cell_length_c [8.5073]
_cell_angle_alpha [90.0000]
_cell_angle_beta [134.8098]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [La4Nd3Se8]
_chemical_formula_sum '[La8 Nd6 Se16]'
_cell_volume [880.2273]
_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
[
  La  La0  4  0.2500  0.2500  0.0000  1.0
  La  La1  2  0.0000  0.0000  0.0000  1.0
  La  La2  2  0.0000  0.5000  0.5000  1.0
  Nd  Nd3  4  0.2500  0.2500  0.5000  1.0
  Nd  Nd4  2  0.0000  0.0000  0.5000  1.0
  Se  Se5  4  0.0000  0.2486  0.5000  1.0
  Se  Se6  4  0.0000  0.2525  0.0000  1.0
  Se  Se7  4  0.2485  0.5000  0.4940  1.0
  Se  Se8  4  0.2498  0.5000  0.0034  1.0
]