data_global
_amcsd_formula_title 'Ag2 O'
loop_
_publ_author_name
'Wyckoff R'
_journal_name_full 'American Journal of Science'
_journal_volume 3 
_journal_year 1922
_journal_page_first 184
_journal_page_last 188
_publ_section_title
;
 The Crystal Structure of Silver Oxide (Ag2 O)
 _cod_database_code 1010604
;
_database_code_amcsd 0017487
_chemical_formula_sum 'O Ag2'
_cell_length_a 4.76
_cell_length_b 4.76
_cell_length_c 4.76
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 90
_cell_volume 107.850
_exptl_crystal_density_diffrn      7.136
_symmetry_space_group_name_H-M 'P n 3'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  '1/2+z,1/2+x,1/2-y'
  '1/2+z,1/2-x,1/2+y'
  '1/2-z,1/2+x,1/2+y'
  '1/2-z,1/2-x,1/2-y'
  'y,-z,-x'
  '-y,-z,x'
  '-y,z,-x'
  'y,z,x'
  '1/2+x,1/2-y,1/2+z'
  '1/2-x,1/2+y,1/2+z'
  '1/2+x,1/2+y,1/2-z'
  '1/2-x,1/2-y,1/2-z'
  '-z,-x,y'
  '-z,x,-y'
  'z,-x,-y'
  'z,x,y'
  '1/2-y,1/2+z,1/2+x'
  '1/2+y,1/2+z,1/2-x'
  '1/2+y,1/2-z,1/2+x'
  '1/2-y,1/2-z,1/2-x'
  '-x,y,-z'
  'x,-y,-z'
  '-x,-y,z'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
O1   0.00000   0.00000   0.00000
Ag1   0.25000   0.25000   0.25000