data_[Rb4Ac2Ag2I12]
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
  Ag  1.9300  1.6000  1.0867
  I  2.6600  1.4000  1.2733
]
_symmetry_space_group_name_H-M [P2_1/c]
_cell_length_a [8.5426]
_cell_length_b [9.0067]
_cell_length_c [14.7010]
_cell_angle_alpha [90.0000]
_cell_angle_beta [125.2050]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [14]
_chemical_formula_structural [Rb2AcAgI6]
_chemical_formula_sum '[Rb4 Ac2 Ag2 I12]'
_cell_volume [924.2202]
_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
[
  Rb  Rb0  4  0.2216  0.5797  0.7477  1
  Ac  Ac1  2  0.5000  0.0000  0.0000  1
  Ag  Ag2  2  0.0000  0.0000  0.5000  1
  I  I3  4  0.1393  0.7012  0.4485  1
  I  I4  4  0.2542  0.1957  0.4524  1
  I  I5  4  0.3365  0.5216  0.2370  1
]