The crystal structure described by AgFeO2 crystallizes in the trigonal R3m space group. Fe(1) is bonded to three equivalent O(1) and three equivalent O(2) atoms to form edge-sharing FeO6 octahedra. Ag(1) is bonded in a 4-coordinate geometry to one O(1) and three equivalent O(2) atoms. There are two inequivalent O sites. In the first O site, O(1) is bonded to three equivalent Fe(1) and one Ag(1) atom to form distorted corner-sharing OFe3Ag tetrahedra. In the second O site, O(2) is bonded in a 6-coordinate geometry to three equivalent Fe(1) and three equivalent Ag(1) atoms. is represented by the CIF file [CIF]
data_FeAgO2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.324
_cell_length_b   6.324
_cell_length_c   6.324
_cell_angle_alpha   26.956
_cell_angle_beta   26.956
_cell_angle_gamma   26.956
_symmetry_Int_Tables_number   1
_cell_volume   45.832
_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
  Fe  Fe0  1  0.999  0.999  0.999  1.0
  Ag  Ag1  1  0.160  0.160  0.160  1.0
  O  O2  1  0.279  0.279  0.279  1.0
  O  O3  1  0.721  0.721  0.721  1.0
[/CIF]
.
The crystal structure described by AgFeO2 crystallizes in the trigonal R3m space group. Fe(1) is bonded to three equivalent O(1) and three equivalent O(2) atoms to form edge-sharing FeO6 octahedra. Ag(1) is bonded in a 4-coordinate geometry to one O(1) and three equivalent O(2) atoms. There are two inequivalent O sites. In the first O site, O(1) is bonded to three equivalent Fe(1) and one Ag(1) atom to form distorted corner-sharing OFe3Ag tetrahedra. In the second O site, O(2) is bonded in a 6-coordinate geometry to three equivalent Fe(1) and three equivalent Ag(1) atoms. is represented by the CIF file [CIF]
data_FeAgO2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.324
_cell_length_b   6.324
_cell_length_c   6.324
_cell_angle_alpha   26.956
_cell_angle_beta   26.956
_cell_angle_gamma   26.956
_symmetry_Int_Tables_number   1
_cell_volume   45.832
_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
  Fe  Fe0  1  0.999  0.999  0.999  1.0
  Ag  Ag1  1  0.160  0.160  0.160  1.0
  O  O2  1  0.279  0.279  0.279  1.0
  O  O3  1  0.721  0.721  0.721  1.0
[/CIF]
.