data_[Li4Sn2Se4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Li  0.9800  1.4500  0.9000
  Sn  1.9600  1.4500  0.8300
  Se  2.5500  1.1500  1.0133
]
_symmetry_space_group_name_H-M [Pnc2]
_cell_length_a [18.2280]
_cell_length_b [4.5695]
_cell_length_c [11.2432]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [30]
_chemical_formula_structural [Li2SnSe2]
_chemical_formula_sum '[Li4 Sn2 Se4]'
_cell_volume [936.4847]
_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  4  0.4495  0.2281  0.6781  1
  Sn  Sn1  2  0.5000  0.0000  0.4088  1
  Se  Se2  4  0.4115  0.7239  0.7544  1
]