data_[Rb2Ac2Sn2Se6]
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
  Sn  1.9600  1.4500  0.8300
  Se  2.5500  1.1500  1.0133
]
_symmetry_space_group_name_H-M [P2_1/m]
_cell_length_a [9.0164]
_cell_length_b [4.4288]
_cell_length_c [12.0632]
_cell_angle_alpha [90.0000]
_cell_angle_beta [105.2951]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [11]
_chemical_formula_structural [RbAcSnSe3]
_chemical_formula_sum '[Rb2 Ac2 Sn2 Se6]'
_cell_volume [464.6431]
_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  2  0.2476  0.7500  0.2771  1
  Ac  Ac1  2  0.3417  0.2500  0.8503  1
  Sn  Sn2  2  0.1360  0.7500  0.5646  1
  Se  Se3  2  0.0854  0.7500  0.7738  1
  Se  Se4  2  0.3367  0.2500  0.5885  1
  Se  Se5  2  0.4115  0.2500  0.1148  1
]