The material structure described by KFeO2 crystallizes in the triclinic P-1 space group. K(1) is bonded in a 6-coordinate geometry to two equivalent O(1) and four equivalent O(2) atoms. Fe(1) is bonded to two equivalent O(1) and two equivalent O(2) atoms to form a mixture of corner and edge-sharing FeO4 tetrahedra. There are two inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to two equivalent K(1) and two equivalent Fe(1) atoms. In the second O site, O(2) is bonded in a distorted bent 120 degrees geometry to four equivalent K(1) and two equivalent Fe(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_KFeO2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.206
_cell_length_b   6.817
_cell_length_c   6.848
_cell_angle_alpha   96.996
_cell_angle_beta   103.520
_cell_angle_gamma   103.250
_symmetry_Int_Tables_number   1
_cell_volume   139.195
_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
  Fe  Fe0  1  0.154  0.154  0.159  1.0
  Fe  Fe1  1  0.846  0.846  0.841  1.0
  K  K2  1  0.498  0.333  0.671  1.0
  K  K3  1  0.502  0.667  0.329  1.0
  O  O4  1  0.998  0.863  0.130  1.0
  O  O5  1  0.002  0.137  0.870  1.0
  O  O6  1  0.221  0.721  0.713  1.0
  O  O7  1  0.779  0.279  0.287  1.0
[/CIF]
.
The material structure described by KFeO2 crystallizes in the triclinic P-1 space group. K(1) is bonded in a 6-coordinate geometry to two equivalent O(1) and four equivalent O(2) atoms. Fe(1) is bonded to two equivalent O(1) and two equivalent O(2) atoms to form a mixture of corner and edge-sharing FeO4 tetrahedra. There are two inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to two equivalent K(1) and two equivalent Fe(1) atoms. In the second O site, O(2) is bonded in a distorted bent 120 degrees geometry to four equivalent K(1) and two equivalent Fe(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_KFeO2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.206
_cell_length_b   6.817
_cell_length_c   6.848
_cell_angle_alpha   96.996
_cell_angle_beta   103.520
_cell_angle_gamma   103.250
_symmetry_Int_Tables_number   1
_cell_volume   139.195
_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
  Fe  Fe0  1  0.154  0.154  0.159  1.0
  Fe  Fe1  1  0.846  0.846  0.841  1.0
  K  K2  1  0.498  0.333  0.671  1.0
  K  K3  1  0.502  0.667  0.329  1.0
  O  O4  1  0.998  0.863  0.130  1.0
  O  O5  1  0.002  0.137  0.870  1.0
  O  O6  1  0.221  0.721  0.713  1.0
  O  O7  1  0.779  0.279  0.287  1.0
[/CIF]
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