data_[Rb8Cu4Sn4Cl20]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Cu  1.9000  1.3500  0.8200
  Sn  1.9600  1.4500  0.8300
  Cl  3.1600  1.0000  0.7800
]
_symmetry_space_group_name_H-M [Cmc2_1]
_cell_length_a [4.1738]
_cell_length_b [19.1973]
_cell_length_c [13.6814]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [36]
_chemical_formula_structural [Rb2CuSnCl5]
_chemical_formula_sum '[Rb8 Cu4 Sn4 Cl20]'
_cell_volume [1096.2217]
_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  0.1151  0.6929  1
  Rb  Rb1  4  0.0000  0.1252  0.3169  1
  Cu  Cu2  4  0.0000  0.4788  0.4588  1
  Sn  Sn3  4  0.0000  0.1984  0.0081  1
  Cl  Cl4  4  0.0000  0.0267  0.0301  1
  Cl  Cl5  4  0.0000  0.2944  0.6524  1
  Cl  Cl6  4  0.0000  0.2983  0.3630  1
  Cl  Cl7  4  0.0000  0.3358  0.0066  1
  Cl  Cl8  4  0.0000  0.4965  0.2951  1
]