data_[Np2Pa2C2Se4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Np  1.3600  1.7500  1.0000
  Pa  1.5000  1.8000  1.0400
  C  2.5500  0.7000  0.3000
  Se  2.5500  1.1500  1.0133
]
_symmetry_space_group_name_H-M [P4/nmm]
_cell_length_a [4.0118]
_cell_length_b [4.0118]
_cell_length_c [14.3176]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [129]
_chemical_formula_structural [NpPaCSe2]
_chemical_formula_sum '[Np2 Pa2 C2 Se4]'
_cell_volume [230.4332]
_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  2  0.0000  0.5000  0.8854  1
  Pa  Pa1  2  0.0000  0.5000  0.4189  1
  C  C2  2  0.0000  0.0000  0.5000  1
  Se  Se3  2  0.0000  0.5000  0.0933  1
  Se  Se4  2  0.0000  0.5000  0.6927  1
]