data_[Np6Se6S6]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Np  1.3600  1.7500  1.0000
  Se  2.5500  1.1500  1.0133
  S  2.5800  1.0000  0.8800
]
_symmetry_space_group_name_H-M [R-3m]
_cell_length_a [4.6079]
_cell_length_b [4.6079]
_cell_length_c [23.4707]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [166]
_chemical_formula_structural [NpSeS]
_chemical_formula_sum '[Np6 Se6 S6]'
_cell_volume [431.5800]
_cell_formula_units_Z [6]
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
[
  Np  Np0  6  0.0000  0.0000  0.2568  1
  Se  Se1  6  0.0000  0.0000  0.1259  1
  S  S2  6  0.0000  0.0000  0.3734  1
]