The structure described by CoAgO3 crystallizes in the monoclinic C2/c space group. There are two inequivalent Co sites. In the first Co site, Co(1) is bonded to two equivalent O(2) and four equivalent O(1) atoms to form edge-sharing CoO6 octahedra. In the second Co site, Co(2) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms to form distorted CoO6 octahedra that share corners with two equivalent O(3)CoAg2O tetrahedra and edges with three equivalent Co(1)O6 octahedra. Ag(1) is bonded in a 4-coordinate geometry to one O(1), one O(2), and two equivalent O(3) atoms. There are three inequivalent O sites. In the first O site, O(1) is bonded to one Co(2), two equivalent Co(1), and one Ag(1) atom to form distorted OCo3Ag trigonal pyramids that share corners with four equivalent O(3)CoAg2O tetrahedra, corners with three equivalent O(1)Co3Ag trigonal pyramids, and edges with two equivalent O(1)Co3Ag trigonal pyramids. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to one Co(1), one Co(2), and one Ag(1) atom. In the third O site, O(3) is bonded to one Co(2), two equivalent Ag(1), and one O(3) atom to form distorted OCoAg2O tetrahedra that share  a cornercorner with one Co(2)O6 octahedra, corners with three equivalent O(3)CoAg2O tetrahedra, and corners with four equivalent O(1)Co3Ag trigonal pyramids. The corner-sharing octahedral tilt angles are 71°. is represented by the Crystallographic Information File (CIF) [CIF]
data_CoAgO3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.968
_cell_length_b   6.968
_cell_length_c   4.999
_cell_angle_alpha   86.700
_cell_angle_beta   86.700
_cell_angle_gamma   75.156
_symmetry_Int_Tables_number   1
_cell_volume   233.994
_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
  Co  Co0  1  0.915  0.085  0.750  1.0
  Co  Co1  1  0.728  0.272  0.250  1.0
  Co  Co2  1  0.272  0.728  0.750  1.0
  Co  Co3  1  0.085  0.915  0.250  1.0
  Ag  Ag4  1  0.845  0.613  0.739  1.0
  Ag  Ag5  1  0.613  0.845  0.239  1.0
  Ag  Ag6  1  0.387  0.155  0.761  1.0
  Ag  Ag7  1  0.155  0.387  0.261  1.0
  O  O8  1  0.997  0.829  0.591  1.0
  O  O9  1  0.875  0.319  0.917  1.0
  O  O10  1  0.829  0.997  0.091  1.0
  O  O11  1  0.598  0.502  0.469  1.0
  O  O12  1  0.681  0.125  0.583  1.0
  O  O13  1  0.502  0.598  0.969  1.0
  O  O14  1  0.498  0.402  0.031  1.0
  O  O15  1  0.319  0.875  0.417  1.0
  O  O16  1  0.402  0.498  0.531  1.0
  O  O17  1  0.171  0.003  0.909  1.0
  O  O18  1  0.125  0.681  0.083  1.0
  O  O19  1  0.003  0.171  0.409  1.0
[/CIF]
.
The structure described by CoAgO3 crystallizes in the monoclinic C2/c space group. There are two inequivalent Co sites. In the first Co site, Co(1) is bonded to two equivalent O(2) and four equivalent O(1) atoms to form edge-sharing CoO6 octahedra. In the second Co site, Co(2) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms to form distorted CoO6 octahedra that share corners with two equivalent O(3)CoAg2O tetrahedra and edges with three equivalent Co(1)O6 octahedra. Ag(1) is bonded in a 4-coordinate geometry to one O(1), one O(2), and two equivalent O(3) atoms. There are three inequivalent O sites. In the first O site, O(1) is bonded to one Co(2), two equivalent Co(1), and one Ag(1) atom to form distorted OCo3Ag trigonal pyramids that share corners with four equivalent O(3)CoAg2O tetrahedra, corners with three equivalent O(1)Co3Ag trigonal pyramids, and edges with two equivalent O(1)Co3Ag trigonal pyramids. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to one Co(1), one Co(2), and one Ag(1) atom. In the third O site, O(3) is bonded to one Co(2), two equivalent Ag(1), and one O(3) atom to form distorted OCoAg2O tetrahedra that share  a cornercorner with one Co(2)O6 octahedra, corners with three equivalent O(3)CoAg2O tetrahedra, and corners with four equivalent O(1)Co3Ag trigonal pyramids. The corner-sharing octahedral tilt angles are 71°. is represented by the Crystallographic Information File (CIF) [CIF]
data_CoAgO3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.968
_cell_length_b   6.968
_cell_length_c   4.999
_cell_angle_alpha   86.700
_cell_angle_beta   86.700
_cell_angle_gamma   75.156
_symmetry_Int_Tables_number   1
_cell_volume   233.994
_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
  Co  Co0  1  0.915  0.085  0.750  1.0
  Co  Co1  1  0.728  0.272  0.250  1.0
  Co  Co2  1  0.272  0.728  0.750  1.0
  Co  Co3  1  0.085  0.915  0.250  1.0
  Ag  Ag4  1  0.845  0.613  0.739  1.0
  Ag  Ag5  1  0.613  0.845  0.239  1.0
  Ag  Ag6  1  0.387  0.155  0.761  1.0
  Ag  Ag7  1  0.155  0.387  0.261  1.0
  O  O8  1  0.997  0.829  0.591  1.0
  O  O9  1  0.875  0.319  0.917  1.0
  O  O10  1  0.829  0.997  0.091  1.0
  O  O11  1  0.598  0.502  0.469  1.0
  O  O12  1  0.681  0.125  0.583  1.0
  O  O13  1  0.502  0.598  0.969  1.0
  O  O14  1  0.498  0.402  0.031  1.0
  O  O15  1  0.319  0.875  0.417  1.0
  O  O16  1  0.402  0.498  0.531  1.0
  O  O17  1  0.171  0.003  0.909  1.0
  O  O18  1  0.125  0.681  0.083  1.0
  O  O19  1  0.003  0.171  0.409  1.0
[/CIF]
.