data_[Ac2Ag2Se2O12]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ac  1.1000  1.9500  1.2600
  Ag  1.9300  1.6000  1.0867
  Se  2.5500  1.1500  1.0133
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [C2]
_cell_length_a [5.6358]
_cell_length_b [8.9183]
_cell_length_c [5.1998]
_cell_angle_alpha [90.0000]
_cell_angle_beta [92.7640]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [5]
_chemical_formula_structural [AcAgSeO6]
_chemical_formula_sum '[Ac2 Ag2 Se2 O12]'
_cell_volume [261.0508]
_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  0.9891  0.0000  1
  Ag  Ag1  2  0.0000  0.6647  0.5000  1
  Se  Se2  2  0.0000  0.3258  0.5000  1
  O  O3  4  0.1165  0.4826  0.7104  1
  O  O4  4  0.1240  0.1990  0.7257  1
  O  O5  4  0.2146  0.8294  0.6782  1
]