data_[As8O12]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  As  2.1800  1.1500  0.6600
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [Pccn]
_cell_length_a [5.3993]
_cell_length_b [12.8338]
_cell_length_c [5.2598]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [56]
_chemical_formula_structural [As2O3]
_chemical_formula_sum '[As8 O12]'
_cell_volume [364.4761]
_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
[
  As  As0  8  0.0914  0.6323  0.6663  1
  O  O1  8  0.1622  0.5704  0.3596  1
  O  O2  4  0.2500  0.7500  0.0459  1
]