data_[Y8Cu2O14]
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
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [12.5673]
_cell_length_b [3.8916]
_cell_length_c [8.9938]
_cell_angle_alpha [90.0000]
_cell_angle_beta [133.5056]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Y4CuO7]
_chemical_formula_sum '[Y8 Cu2 O14]'
_cell_volume [319.0312]
_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  4  0.0877  0.5000  0.3983  1
  Y  Y1  4  0.2469  0.5000  0.1559  1
  Cu  Cu2  2  0.0000  0.0000  0.0000  1
  O  O3  4  0.0911  0.0000  0.8934  1
  O  O4  4  0.1335  0.5000  0.6969  1
  O  O5  4  0.2046  0.0000  0.5564  1
  O  O6  2  0.0000  0.5000  0.0000  1
]