data_[Np4Cu8Hg4O24]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Np  1.3600  1.7500  1.0000
  Cu  1.9000  1.3500  0.8200
  Hg  2.0000  1.5000  1.2450
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [C2/c]
_cell_length_a [9.7961]
_cell_length_b [10.5707]
_cell_length_c [5.6044]
_cell_angle_alpha [90.0000]
_cell_angle_beta [100.0665]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [15]
_chemical_formula_structural [NpCu2HgO6]
_chemical_formula_sum '[Np4 Cu8 Hg4 O24]'
_cell_volume [571.4082]
_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  4  0.0000  0.2952  0.2500  1
  Cu  Cu1  8  0.1966  0.4243  0.8194  1
  Hg  Hg2  4  0.0000  0.1028  0.7500  1
  O  O3  8  0.1089  0.1314  0.1025  1
  O  O4  8  0.1199  0.2994  0.5549  1
  O  O5  8  0.1355  0.4257  0.1309  1
]