data_[Np2H1Se2F1]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Np  1.3600  1.7500  1.0000
  H  2.2000  0.2500  0.0000
  Se  2.5500  1.1500  1.0133
  F  3.9800  0.5000  0.7050
]
_symmetry_space_group_name_H-M [P-6m2]
_cell_length_a [4.0174]
_cell_length_b [4.0174]
_cell_length_c [7.7565]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [187]
_chemical_formula_structural [Np2HSe2F]
_chemical_formula_sum '[Np2 H1 Se2 F1]'
_cell_volume [108.4171]
_cell_formula_units_Z [1]
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  1  0.0000  0.0000  0.5000  1
  Np  Np1  1  0.6667  0.3333  0.0000  1
  H  H2  1  0.6667  0.3333  0.5000  1
  Se  Se3  2  0.3333  0.6667  0.2608  1
  F  F4  1  0.0000  0.0000  0.0000  1
]