data_[Na4Cu2F14]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Cu  1.9000  1.3500  0.8200
  F  3.9800  0.5000  0.7050
]
_symmetry_space_group_name_H-M [P-1]
_cell_length_a [5.7336]
_cell_length_b [6.2673]
_cell_length_c [8.0281]
_cell_angle_alpha [88.7087]
_cell_angle_beta [75.4212]
_cell_angle_gamma [79.2545]
_symmetry_Int_Tables_number [2]
_chemical_formula_structural [Na2CuF7]
_chemical_formula_sum '[Na4 Cu2 F14]'
_cell_volume [274.2060]
_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
[
  Na  Na0  2  0.2070  0.2800  0.1189  1
  Na  Na1  2  0.3178  0.7881  0.5274  1
  Cu  Cu2  2  0.0777  0.2560  0.7299  1
  F  F3  2  0.0292  0.9998  0.2710  1
  F  F4  2  0.0968  0.6774  0.0528  1
  F  F5  2  0.1925  0.5099  0.7236  1
  F  F6  2  0.1999  0.5888  0.3441  1
  F  F7  2  0.2671  0.1809  0.5162  1
  F  F8  2  0.3743  0.1347  0.8248  1
  F  F9  2  0.4429  0.8189  0.7883  1
]