data_[Li3Np3Sn3]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Li  0.9800  1.4500  0.9000
  Np  1.3600  1.7500  1.0000
  Sn  1.9600  1.4500  0.8300
]
_symmetry_space_group_name_H-M [P3m1]
_cell_length_a [4.8984]
_cell_length_b [4.8984]
_cell_length_c [11.4431]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [156]
_chemical_formula_structural [LiNpSn]
_chemical_formula_sum '[Li3 Np3 Sn3]'
_cell_volume [237.7793]
_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
[
  Li  Li0  1  0.3333  0.6667  0.5254  1
  Li  Li1  1  0.6667  0.3333  0.1928  1
  Li  Li2  1  0.6667  0.3333  0.6987  1
  Np  Np3  1  0.0000  0.0000  0.1254  1
  Np  Np4  1  0.0000  0.0000  0.3308  1
  Np  Np5  1  0.0000  0.0000  0.9128  1
  Sn  Sn6  1  0.3333  0.6667  0.0361  1
  Sn  Sn7  1  0.3333  0.6667  0.7763  1
  Sn  Sn8  1  0.6667  0.3333  0.4456  1
]