data_[Cs2Na6Np4Se12]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Cs  0.7900  2.6000  1.8100
  Na  0.9300  1.8000  1.1600
  Np  1.3600  1.7500  1.0000
  Se  2.5500  1.1500  1.0133
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [17.9511]
_cell_length_b [4.2459]
_cell_length_c [10.3941]
_cell_angle_alpha [90.0000]
_cell_angle_beta [100.9851]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [CsNa3(NpSe3)2]
_chemical_formula_sum '[Cs2 Na6 Np4 Se12]'
_cell_volume [777.7113]
_cell_formula_units_Z [2]
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
[
  Cs  Cs0  2  0.0000  0.5000  0.0000  1
  Na  Na1  4  0.1489  0.0000  0.7345  1
  Na  Na2  2  0.0000  0.5000  0.5000  1
  Np  Np3  4  0.1679  0.0000  0.3500  1
  Se  Se4  4  0.0142  0.0000  0.2917  1
  Se  Se5  4  0.1701  0.5000  0.5428  1
  Se  Se6  4  0.1882  0.5000  0.1824  1
]