data_[Mg4Ag8O16]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Mg  1.3100  1.5000  0.8600
  Ag  1.9300  1.6000  1.0867
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [P2/c]
_cell_length_a [6.6683]
_cell_length_b [5.6542]
_cell_length_c [11.8128]
_cell_angle_alpha [90.0000]
_cell_angle_beta [116.2258]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [13]
_chemical_formula_structural [Mg(AgO2)2]
_chemical_formula_sum '[Mg4 Ag8 O16]'
_cell_volume [399.5375]
_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
[
  Mg  Mg0  2  0.0000  0.1276  0.2500  1
  Mg  Mg1  2  0.5000  0.4112  0.7500  1
  Ag  Ag2  4  0.2564  0.4640  0.9593  1
  Ag  Ag3  2  0.0000  0.0000  0.0000  1
  Ag  Ag4  2  0.5000  0.0000  0.0000  1
  O  O5  4  0.0906  0.3240  0.1309  1
  O  O6  4  0.1757  0.1035  0.8894  1
  O  O7  4  0.2726  0.3490  0.2592  1
  O  O8  4  0.3758  0.2397  0.5858  1
]