data_[Cu4Ir6O16]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Cu  1.9000  1.3500  0.8200
  Ir  2.2000  1.3500  0.7650
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [9.5487]
_cell_length_b [5.6625]
_cell_length_c [5.3982]
_cell_angle_alpha [90.0000]
_cell_angle_beta [100.9913]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Cu2Ir3O8]
_chemical_formula_sum '[Cu4 Ir6 O16]'
_cell_volume [286.5219]
_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
[
  Cu  Cu0  4  0.2112  0.5000  0.0630  1
  Ir  Ir1  4  0.0000  0.2769  0.5000  1
  Ir  Ir2  2  0.0000  0.0000  0.0000  1
  O  O3  8  0.1183  0.2422  0.8525  1
  O  O4  4  0.0980  0.0000  0.3696  1
  O  O5  4  0.1352  0.5000  0.3884  1
]