data_[Np8Tl4Pt4Se16]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Np  1.3600  1.7500  1.0000
  Tl  1.6200  1.9000  1.3325
  Pt  2.2800  1.3500  0.8050
  Se  2.5500  1.1500  1.0133
]
_symmetry_space_group_name_H-M [Cmcm]
_cell_length_a [4.1153]
_cell_length_b [14.0936]
_cell_length_c [14.4444]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [63]
_chemical_formula_structural [Np2TlPtSe4]
_chemical_formula_sum '[Np8 Tl4 Pt4 Se16]'
_cell_volume [837.7738]
_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  8  0.0000  0.3681  0.5680  1
  Tl  Tl1  4  0.0000  0.1237  0.7500  1
  Pt  Pt2  4  0.0000  0.1615  0.2500  1
  Se  Se3  8  0.0000  0.2674  0.1054  1
  Se  Se4  4  0.0000  0.0000  0.0000  1
  Se  Se5  4  0.0000  0.4420  0.7500  1
]