The material described by Ag2Cu2O3 crystallizes in the tetragonal I4_1/amd space group. Ag(1) is bonded in a linear geometry to two equivalent O(2) atoms. Cu(1) is bonded in a square co-planar geometry to two equivalent O(1) and two equivalent O(2) atoms. There are two inequivalent O sites. In the first O site, O(2) is bonded to two equivalent Ag(1) and two equivalent Cu(1) atoms to form OCu2Ag2 tetrahedra that share corners with two equivalent O(1)Cu4 tetrahedra, corners with four equivalent O(2)Cu2Ag2 tetrahedra, and  an edgeedge with one O(1)Cu4 tetrahedra. In the second O site, O(1) is bonded to four equivalent Cu(1) atoms to form OCu4 tetrahedra that share corners with four equivalent O(2)Cu2Ag2 tetrahedra, corners with four equivalent O(1)Cu4 tetrahedra, and edges with two equivalent O(2)Cu2Ag2 tetrahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_Cu2Ag2O3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.843
_cell_length_b   6.843
_cell_length_c   6.843
_cell_angle_alpha   128.044
_cell_angle_beta   128.044
_cell_angle_gamma   76.553
_symmetry_Int_Tables_number   1
_cell_volume   193.016
_cell_formula_units_Z   2
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  0.375  0.625  0.250  1.0
  Cu  Cu1  1  0.875  0.625  0.250  1.0
  Cu  Cu2  1  0.375  0.625  0.750  1.0
  Cu  Cu3  1  0.375  0.125  0.750  1.0
  Ag  Ag4  1  0.375  0.125  0.250  1.0
  Ag  Ag5  1  0.875  0.125  0.250  1.0
  Ag  Ag6  1  0.875  0.625  0.750  1.0
  Ag  Ag7  1  0.875  0.125  0.750  1.0
  O  O8  1  0.250  0.750  0.500  1.0
  O  O9  1  0.500  0.500  0.000  1.0
  O  O10  1  0.737  0.737  0.000  1.0
  O  O11  1  0.487  0.987  0.500  1.0
  O  O12  1  0.263  0.263  0.000  1.0
  O  O13  1  0.013  0.513  0.500  1.0
[/CIF]
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The material described by Ag2Cu2O3 crystallizes in the tetragonal I4_1/amd space group. Ag(1) is bonded in a linear geometry to two equivalent O(2) atoms. Cu(1) is bonded in a square co-planar geometry to two equivalent O(1) and two equivalent O(2) atoms. There are two inequivalent O sites. In the first O site, O(2) is bonded to two equivalent Ag(1) and two equivalent Cu(1) atoms to form OCu2Ag2 tetrahedra that share corners with two equivalent O(1)Cu4 tetrahedra, corners with four equivalent O(2)Cu2Ag2 tetrahedra, and  an edgeedge with one O(1)Cu4 tetrahedra. In the second O site, O(1) is bonded to four equivalent Cu(1) atoms to form OCu4 tetrahedra that share corners with four equivalent O(2)Cu2Ag2 tetrahedra, corners with four equivalent O(1)Cu4 tetrahedra, and edges with two equivalent O(2)Cu2Ag2 tetrahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_Cu2Ag2O3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.843
_cell_length_b   6.843
_cell_length_c   6.843
_cell_angle_alpha   128.044
_cell_angle_beta   128.044
_cell_angle_gamma   76.553
_symmetry_Int_Tables_number   1
_cell_volume   193.016
_cell_formula_units_Z   2
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  0.375  0.625  0.250  1.0
  Cu  Cu1  1  0.875  0.625  0.250  1.0
  Cu  Cu2  1  0.375  0.625  0.750  1.0
  Cu  Cu3  1  0.375  0.125  0.750  1.0
  Ag  Ag4  1  0.375  0.125  0.250  1.0
  Ag  Ag5  1  0.875  0.125  0.250  1.0
  Ag  Ag6  1  0.875  0.625  0.750  1.0
  Ag  Ag7  1  0.875  0.125  0.750  1.0
  O  O8  1  0.250  0.750  0.500  1.0
  O  O9  1  0.500  0.500  0.000  1.0
  O  O10  1  0.737  0.737  0.000  1.0
  O  O11  1  0.487  0.987  0.500  1.0
  O  O12  1  0.263  0.263  0.000  1.0
  O  O13  1  0.013  0.513  0.500  1.0
[/CIF]
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