data_[Rb1Ac1Cu4O6]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Ac  1.1000  1.9500  1.2600
  Cu  1.9000  1.3500  0.8200
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [P6/mmm]
_cell_length_a [5.6338]
_cell_length_b [5.6338]
_cell_length_c [7.1841]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [191]
_chemical_formula_structural [RbAc(Cu2O3)2]
_chemical_formula_sum '[Rb1 Ac1 Cu4 O6]'
_cell_volume [197.4734]
_cell_formula_units_Z [1]
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
[
  Rb  Rb0  1  0.0000  0.0000  0.0000  1
  Ac  Ac1  1  0.0000  0.0000  0.5000  1
  Cu  Cu2  4  0.3333  0.6667  0.1812  1
  O  O3  6  0.0000  0.5000  0.2950  1
]