data_[Na4Np12S24]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Np  1.3600  1.7500  1.0000
  S  2.5800  1.0000  0.8800
]
_symmetry_space_group_name_H-M [Cmc2_1]
_cell_length_a [10.4303]
_cell_length_b [12.8706]
_cell_length_c [6.7920]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [36]
_chemical_formula_structural [Na(NpS2)3]
_chemical_formula_sum '[Na4 Np12 S24]'
_cell_volume [911.7879]
_cell_formula_units_Z [4]
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
[
  Na  Na0  4  0.0000  0.1765  0.9884  1
  Np  Np1  8  0.1834  0.1036  0.4808  1
  Np  Np2  4  0.0000  0.3983  0.3794  1
  S  S3  8  0.1622  0.4659  0.6767  1
  S  S4  8  0.1824  0.2719  0.2227  1
  S  S5  4  0.0000  0.0088  0.2466  1
  S  S6  4  0.0000  0.2316  0.6106  1
]