data_[La3Tb6Sm3Se18]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  La  1.1000  1.9500  1.1720
  Tb  1.1000  1.7500  0.9815
  Sm  1.1700  1.8500  1.2290
  Se  2.5500  1.1500  1.0133
]
_symmetry_space_group_name_H-M [R3]
_cell_length_a [7.3872]
_cell_length_b [7.3872]
_cell_length_c [19.5922]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [146]
_chemical_formula_structural [LaTb2SmSe6]
_chemical_formula_sum '[La3 Tb6 Sm3 Se18]'
_cell_volume [925.9246]
_cell_formula_units_Z [3]
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
[
  Tb  Tb0  3  0.0000  0.0000  0.0132  1.0
  Tb  Tb1  3  0.0000  0.0000  0.5158  1.0
  La  La2  3  0.0000  0.0000  0.8106  1.0
  Sm  Sm3  3  0.0000  0.0000  0.3152  1.0
  Se  Se4  9  0.0352  0.3581  0.5843  1.0
  Se  Se5  9  0.0497  0.6919  0.0845  1.0
]