data_[Np8U4S16]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Np  1.3600  1.7500  1.0000
  U  1.3800  1.7500  0.9913
  S  2.5800  1.0000  0.8800
]
_symmetry_space_group_name_H-M [Cmcm]
_cell_length_a [3.8291]
_cell_length_b [13.0032]
_cell_length_c [12.7735]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [63]
_chemical_formula_structural [Np2US4]
_chemical_formula_sum '[Np8 U4 S16]'
_cell_volume [635.9965]
_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
[
  Np  Np0  8  0.0000  0.1334  0.0667  1
  U  U1  4  0.0000  0.3804  0.2500  1
  S  S2  8  0.0000  0.2263  0.6267  1
  S  S3  4  0.0000  0.0304  0.2500  1
  S  S4  4  0.0000  0.5000  0.0000  1
]