data_[La2Nd2Sm2Se6]
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
  Sm  1.1700  1.8500  1.2290
  Se  2.5500  1.1500  1.0133
]
_symmetry_space_group_name_H-M [P2_1/m]
_cell_length_a [7.3657]
_cell_length_b [4.1182]
_cell_length_c [11.0314]
_cell_angle_alpha [90.0000]
_cell_angle_beta [102.6865]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [11]
_chemical_formula_structural [LaNdSmSe3]
_chemical_formula_sum '[La2 Nd2 Sm2 Se6]'
_cell_volume [326.4532]
_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  2  0.3446  0.2500  0.3027  1.0
  Nd  Nd1  2  0.1219  0.2500  0.6302  1.0
  Sm  Sm2  2  0.2325  0.7500  0.9425  1.0
  Se  Se3  2  0.0558  0.7500  0.1557  1.0
  Se  Se4  2  0.2855  0.7500  0.4958  1.0
  Se  Se5  2  0.4539  0.2500  0.8389  1.0
]