data_[Np12Zn2Bi4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Np  1.3600  1.7500  1.0000
  Zn  1.6500  1.3500  0.8800
  Bi  2.0200  1.6000  1.0350
]
_symmetry_space_group_name_H-M [Amm2]
_cell_length_a [3.5751]
_cell_length_b [16.4336]
_cell_length_c [7.3007]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [38]
_chemical_formula_structural [Np6ZnBi2]
_chemical_formula_sum '[Np12 Zn2 Bi4]'
_cell_volume [428.9275]
_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
[
  Np  Np0  4  0.0000  0.1398  0.9417  1
  Np  Np1  4  0.5000  0.1680  0.1507  1
  Np  Np2  2  0.0000  0.0000  0.3009  1
  Np  Np3  2  0.5000  0.0000  0.5220  1
  Zn  Zn4  2  0.5000  0.0000  0.9535  1
  Bi  Bi5  4  0.0000  0.1692  0.5192  1
]