data_[Rb4Y2Cu4S8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Y  1.2200  1.8000  1.0400
  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 [14.6588]
_cell_length_b [3.9303]
_cell_length_c [7.8536]
_cell_angle_alpha [90.0000]
_cell_angle_beta [108.5061]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Rb2Y(CuS2)2]
_chemical_formula_sum '[Rb4 Y2 Cu4 S8]'
_cell_volume [429.0762]
_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  0.1324  0.0000  0.5549  1.0
  Y  Y1  2  0.0000  0.0000  0.0000  1.0
  Cu  Cu2  4  0.1802  0.5000  0.9861  1.0
  S  S3  4  0.0238  0.5000  0.7747  1.0
  S  S4  4  0.2009  0.0000  0.1608  1.0
]