data_[Rb4Pr2Cu4S8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Pr  1.1300  1.8500  1.0600
  Cu  1.9000  1.3500  0.8200
  S  2.5800  1.0000  0.8800
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [15.0676]
_cell_length_b [4.0220]
_cell_length_c [7.9238]
_cell_angle_alpha [90.0000]
_cell_angle_beta [109.5974]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Rb2Pr(CuS2)2]
_chemical_formula_sum '[Rb4 Pr2 Cu4 S8]'
_cell_volume [452.3868]
_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
[
  Rb  Rb0  4  0.1327  0.0000  0.5587  1.0
  Pr  Pr1  2  0.0000  0.0000  0.0000  1.0
  Cu  Cu2  4  0.1783  0.5000  0.9848  1.0
  S  S3  4  0.0253  0.5000  0.7668  1.0
  S  S4  4  0.2048  0.0000  0.1550  1.0
]