data_[Li2Tb2Sn2Se6]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Li  0.9800  1.4500  0.9000
  Tb  1.1000  1.7500  0.9815
  Sn  1.9600  1.4500  0.8300
  Se  2.5500  1.1500  1.0133
]
_symmetry_space_group_name_H-M [P2_1/m]
_cell_length_a [8.7800]
_cell_length_b [3.9644]
_cell_length_c [9.0900]
_cell_angle_alpha [90.0000]
_cell_angle_beta [97.9131]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [11]
_chemical_formula_structural [LiTbSnSe3]
_chemical_formula_sum '[Li2 Tb2 Sn2 Se6]'
_cell_volume [313.3887]
_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
[
  Li  Li0  2  0.0974  0.2500  0.5860  1.0
  Tb  Tb1  2  0.1583  0.2500  0.2128  1.0
  Sn  Sn2  2  0.3460  0.7500  0.8310  1.0
  Se  Se3  2  0.0966  0.2500  0.8746  1.0
  Se  Se4  2  0.1969  0.7500  0.4527  1.0
  Se  Se5  2  0.3870  0.7500  0.1382  1.0
]