data_[K2Cu2Cl7]
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 [P-1]
_cell_length_a [5.1230]
_cell_length_b [7.5007]
_cell_length_c [8.7496]
_cell_angle_alpha [107.2966]
_cell_angle_beta [92.2204]
_cell_angle_gamma [92.0116]
_symmetry_Int_Tables_number [2]
_chemical_formula_structural [K2Cu2Cl7]
_chemical_formula_sum '[K2 Cu2 Cl7]'
_cell_volume [320.3879]
_cell_formula_units_Z [1]
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  0.2893  0.2882  0.7177  1
  Cu  Cu1  2  0.2642  0.1895  0.2096  1
  Cl  Cl2  2  0.2202  0.4265  0.1148  1
  Cl  Cl3  2  0.2254  0.9847  0.3427  1
  Cl  Cl4  2  0.3656  0.6891  0.6529  1
  Cl  Cl5  1  0.0000  0.0000  0.0000  1
]