data_Cu(AgO)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.15
_cell_length_b   5.15
_cell_length_c   5.15
_cell_angle_alpha   133.6
_cell_angle_beta   133.6
_cell_angle_gamma   67.71
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Cu(AgO)2
_chemical_formula_sum   'Cu1 Ag2 O2'
_cell_volume   70.24
_cell_formula_units_Z   1
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
  Cu  Cu0  1  0.0  0.0  0.0  1.0
  Ag  Ag1  1  0.0  0.03  0.14  1.0
  Ag  Ag2  1  0.03  0.0  0.14  1.0
  O  O3  1  0.0  0.03  0.0  1.0
  O  O4  1  0.03  0.0  0.0  1.0

data_Cu(AgO)2
_symmetry_space_group_name_H-M   Cm
_cell_length_a   5.73
_cell_length_b   5.73
_cell_length_c   5.15
_cell_angle_alpha   90.0
_cell_angle_beta   123.86
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   Cu(AgO)2
_chemical_formula_sum   'Cu2 Ag4 O4'
_cell_volume   140.47
_cell_formula_units_Z   2
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  'x, -y, z'
  3  'x+1/2, y+1/2, z'
  4  'x+1/2, -y+1/2, 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
  Cu  Cu0  2  0.0  0.0  0.0  1.0
  Ag  Ag1  4  0.38  0.49  0.89  1.0
  O  O2  4  0.01  0.01  0.03  1.0

Cu Ag Ag O O
Cu Ag Ag O O 0 3 o o o 0 4 o o o 1 2 o o o 3 4 o o o 