data_[Rb4Na2Cu4Cl12]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Na  0.9300  1.8000  1.1600
  Cu  1.9000  1.3500  0.8200
  Cl  3.1600  1.0000  0.7800
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [12.8295]
_cell_length_b [7.1395]
_cell_length_c [8.1164]
_cell_angle_alpha [90.0000]
_cell_angle_beta [117.8094]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Rb2Na(CuCl3)2]
_chemical_formula_sum '[Rb4 Na2 Cu4 Cl12]'
_cell_volume [657.5746]
_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  0.2100  0.5000  0.1929  1.0
  Na  Na1  2  0.0000  0.5000  0.5000  1.0
  Cu  Cu2  4  0.0578  0.0000  0.2538  1.0
  Cl  Cl3  8  0.0546  0.2507  0.7978  1.0
  Cl  Cl4  4  0.2492  0.0000  0.3661  1.0
]