data_[Ac2Cu4Ru2O16]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ac  1.1000  1.9500  1.2600
  Cu  1.9000  1.3500  0.8200
  Ru  2.2000  1.3000  0.6610
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [I-4m2]
_cell_length_a [7.0083]
_cell_length_b [7.0083]
_cell_length_c [6.5180]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [119]
_chemical_formula_structural [AcCu2RuO8]
_chemical_formula_sum '[Ac2 Cu4 Ru2 O16]'
_cell_volume [320.1401]
_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
[
  Ac  Ac0  2  0.0000  0.0000  0.0000  1
  Cu  Cu1  2  0.0000  0.0000  0.5000  1
  Cu  Cu2  2  0.0000  0.5000  0.7500  1
  Ru  Ru3  2  0.0000  0.5000  0.2500  1
  O  O4  8  0.0000  0.2167  0.3129  1
  O  O5  8  0.0000  0.3479  0.9822  1
]