data_[La6Sn3Se3]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  La  1.1000  1.9500  1.1720
  Sn  1.9600  1.4500  0.8300
  Se  2.5500  1.1500  1.0133
]
_symmetry_space_group_name_H-M [R3m]
_cell_length_a [4.4100]
_cell_length_b [4.4100]
_cell_length_c [23.4061]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [160]
_chemical_formula_structural [La2SnSe]
_chemical_formula_sum '[La6 Sn3 Se3]'
_cell_volume [394.2108]
_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
[
  La  La0  3  0.0000  0.0000  0.0831  1
  La  La1  3  0.0000  0.0000  0.2517  1
  Sn  Sn2  3  0.0000  0.0000  0.6674  1
  Se  Se3  3  0.0000  0.0000  0.4978  1
]