data_[Sr8Np4Cu4S20]
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
  Cu  1.9000  1.3500  0.8200
  S  2.5800  1.0000  0.8800
]
_symmetry_space_group_name_H-M [Cmc2_1]
_cell_length_a [4.0063]
_cell_length_b [17.2459]
_cell_length_c [12.3291]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [36]
_chemical_formula_structural [Sr2NpCuS5]
_chemical_formula_sum '[Sr8 Np4 Cu4 S20]'
_cell_volume [851.8446]
_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  0.1096  0.6913  1
  Sr  Sr1  4  0.0000  0.1159  0.3275  1
  Np  Np2  4  0.0000  0.2024  0.0210  1
  Cu  Cu3  4  0.0000  0.4317  0.4312  1
  S  S4  4  0.0000  0.0557  0.0269  1
  S  S5  4  0.0000  0.2937  0.6652  1
  S  S6  4  0.0000  0.3013  0.3762  1
  S  S7  4  0.0000  0.3528  0.0118  1
  S  S8  4  0.0000  0.4996  0.2728  1
]