data_[Y2Cu4F12]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Y  1.2200  1.8000  1.0400
  Cu  1.9000  1.3500  0.8200
  F  3.9800  0.5000  0.7050
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [11.0979]
_cell_length_b [3.9792]
_cell_length_c [7.2390]
_cell_angle_alpha [90.0000]
_cell_angle_beta [126.8961]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [YCu2F6]
_chemical_formula_sum '[Y2 Cu4 F12]'
_cell_volume [255.6524]
_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
[
  Y  Y0  2  0.0000  0.0000  0.5000  1.0
  Cu  Cu1  4  0.1814  0.0000  0.1372  1.0
  F  F2  4  0.0020  0.0000  0.8086  1.0
  F  F3  4  0.1258  0.5000  0.5411  1.0
  F  F4  4  0.2420  0.5000  0.1746  1.0
]