data_[Ag4O4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ag  1.9300  1.6000  1.0867
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [Pmm2]
_cell_length_a [3.1819]
_cell_length_b [5.8623]
_cell_length_c [19.0500]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [25]
_chemical_formula_structural [AgO]
_chemical_formula_sum '[Ag4 O4]'
_cell_volume [355.3428]
_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
[
  Ag  Ag0  1  0.0000  0.0000  0.4334  1
  Ag  Ag1  1  0.0000  0.0000  0.5956  1
  Ag  Ag2  1  0.0000  0.5000  0.3859  1
  Ag  Ag3  1  0.5000  0.5000  0.5240  1
  O  O4  2  0.5000  0.2266  0.5985  1
  O  O5  2  0.5000  0.2512  0.4320  1
]