data_[K2Na4Cu4Cl14]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  K  0.8200  2.2000  1.5200
  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 [6.8344]
_cell_length_b [6.8346]
_cell_length_c [12.1988]
_cell_angle_alpha [90.0000]
_cell_angle_beta [106.1819]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [KNa2Cu2Cl7]
_chemical_formula_sum '[K2 Na4 Cu4 Cl14]'
_cell_volume [547.2385]
_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  2  0.0000  0.0000  0.0000  1.0
  Na  Na1  4  0.1687  0.0000  0.3590  1.0
  Cu  Cu2  4  0.1033  0.5000  0.2071  1.0
  Cl  Cl3  8  0.1489  0.2508  0.7965  1.0
  Cl  Cl4  4  0.2064  0.5000  0.4078  1.0
  Cl  Cl5  2  0.0000  0.5000  0.0000  1.0
]