data_[Np4U4Tc4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Np  1.3600  1.7500  1.0000
  U  1.3800  1.7500  0.9913
  Tc  1.9000  1.3500  0.7417
]
_symmetry_space_group_name_H-M [Imm2]
_cell_length_a [4.5409]
_cell_length_b [5.8486]
_cell_length_c [8.0521]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [44]
_chemical_formula_structural [NpUTc]
_chemical_formula_sum '[Np4 U4 Tc4]'
_cell_volume [213.8490]
_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  4  0.0000  0.2957  0.3689  1
  U  U1  4  0.0000  0.2300  0.7013  1
  Tc  Tc2  2  0.0000  0.0000  0.0621  1
  Tc  Tc3  2  0.0000  0.5000  0.0040  1
]