data_[Sr8Np4Cd4Se20]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sr  0.9500  2.0000  1.3200
  Np  1.3600  1.7500  1.0000
  Cd  1.6900  1.5500  1.0900
  Se  2.5500  1.1500  1.0133
]
_symmetry_space_group_name_H-M [Cmc2_1]
_cell_length_a [4.2691]
_cell_length_b [18.2012]
_cell_length_c [13.1967]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [36]
_chemical_formula_structural [Sr2NpCdSe5]
_chemical_formula_sum '[Sr8 Np4 Cd4 Se20]'
_cell_volume [1025.4157]
_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
[
  Sr  Sr0  4  0.0000  0.1054  0.6776  1
  Sr  Sr1  4  0.0000  0.1259  0.3122  1
  Np  Np2  4  0.0000  0.2111  0.0181  1
  Cd  Cd3  4  0.0000  0.4508  0.4479  1
  Se  Se4  4  0.0000  0.0591  0.0651  1
  Se  Se5  4  0.0000  0.2824  0.6618  1
  Se  Se6  4  0.0000  0.3018  0.3734  1
  Se  Se7  4  0.0000  0.3640  0.0011  1
  Se  Se8  4  0.0000  0.4964  0.7668  1
]