data_[Pm8Np2Sb10]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pm  1.1300  1.8500  1.1100
  Np  1.3600  1.7500  1.0000
  Sb  2.0500  1.4500  0.8300
]
_symmetry_space_group_name_H-M [I4/mmm]
_cell_length_a [4.4775]
_cell_length_b [4.4775]
_cell_length_c [31.6016]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [139]
_chemical_formula_structural [Pm4NpSb5]
_chemical_formula_sum '[Pm8 Np2 Sb10]'
_cell_volume [633.5346]
_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
[
  Pm  Pm0  4  0.0000  0.0000  0.1997  1
  Pm  Pm1  4  0.0000  0.0000  0.3997  1
  Np  Np2  2  0.0000  0.0000  0.0000  1
  Sb  Sb3  4  0.0000  0.0000  0.0985  1
  Sb  Sb4  4  0.0000  0.0000  0.3000  1
  Sb  Sb5  2  0.0000  0.0000  0.5000  1
]