data_[Rb4Ac8Te4Se16]
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
  Te  2.1000  1.4000  1.2933
  Se  2.5500  1.1500  1.0133
]
_symmetry_space_group_name_H-M [Cmcm]
_cell_length_a [4.5573]
_cell_length_b [15.7381]
_cell_length_c [16.0340]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [63]
_chemical_formula_structural [RbAc2TeSe4]
_chemical_formula_sum '[Rb4 Ac8 Te4 Se16]'
_cell_volume [1150.0136]
_cell_formula_units_Z [4]
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  0.0000  0.1541  0.7500  1
  Ac  Ac1  8  0.0000  0.3684  0.5600  1
  Te  Te2  4  0.0000  0.0963  0.2500  1
  Se  Se3  8  0.0000  0.2653  0.0987  1
  Se  Se4  4  0.0000  0.0000  0.0000  1
  Se  Se5  4  0.0000  0.4868  0.7500  1
]