data_[Ag2Se2O6]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  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 [P2_1/m]
_cell_length_a [3.7853]
_cell_length_b [5.4544]
_cell_length_c [7.8651]
_cell_angle_alpha [90.0000]
_cell_angle_beta [94.4405]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [11]
_chemical_formula_structural [AgSeO3]
_chemical_formula_sum '[Ag2 Se2 O6]'
_cell_volume [161.9010]
_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
[
  Ag  Ag0  2  0.2668  0.2500  0.6487  1.0
  Se  Se1  2  0.2031  0.2500  0.1910  1.0
  O  O2  4  0.2254  0.0020  0.3307  1.0
  O  O3  2  0.2209  0.7500  0.9012  1.0
]