data_[K4Cu2Cl6]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  K  0.8200  2.2000  1.5200
  Cu  1.9000  1.3500  0.8200
  Cl  3.1600  1.0000  0.7800
]
_symmetry_space_group_name_H-M [Immm]
_cell_length_a [4.2883]
_cell_length_b [5.3063]
_cell_length_c [15.2358]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [71]
_chemical_formula_structural [K2CuCl3]
_chemical_formula_sum '[K4 Cu2 Cl6]'
_cell_volume [346.6943]
_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
[
  K  K0  4  0.0000  0.0000  0.3560  1.0
  Cu  Cu1  2  0.0000  0.0000  0.0000  1.0
  Cl  Cl2  4  0.0000  0.0000  0.1487  1.0
  Cl  Cl3  2  0.0000  0.5000  0.0000  1.0
]