data_[Rb4Zn4Cu4S8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Zn  1.6500  1.3500  0.8800
  Cu  1.9000  1.3500  0.8200
  S  2.5800  1.0000  0.8800
]
_symmetry_space_group_name_H-M [Cmme]
_cell_length_a [6.0494]
_cell_length_b [13.4988]
_cell_length_c [5.8825]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [67]
_chemical_formula_structural [RbZnCuS2]
_chemical_formula_sum '[Rb4 Zn4 Cu4 S8]'
_cell_volume [480.3660]
_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
[
  Rb  Rb0  4  0.0000  0.2500  0.7583  1.0
  Zn  Zn1  4  0.2500  0.0000  0.5000  1.0
  Cu  Cu2  4  0.0000  0.0000  0.0000  1.0
  S  S3  8  0.0000  0.1011  0.2846  1.0
]