KFeO3 crystallizes in the orthorhombic Pnma space group. K(1) is bonded in a 8-coordinate geometry to two equivalent O(2) and six equivalent O(1) atoms. Fe(1) is bonded to two equivalent O(1) and two equivalent O(2) atoms to form corner-sharing FeO4 tetrahedra. There are two inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to three equivalent K(1) and one Fe(1) atom. In the second O site, O(2) is bonded in a distorted bent 120 degrees geometry to two equivalent K(1) and two equivalent Fe(1) atoms.
KFeO3 crystallizes in the orthorhombic Pnma space group. K(1) is bonded in a 8-coordinate geometry to two equivalent O(2) and six equivalent O(1) atoms. Both K(1)-O(2) bond lengths are 3.24 Å. There are a spread of K(1)-O(1) bond distances ranging from 2.88-2.97 Å. Fe(1) is bonded to two equivalent O(1) and two equivalent O(2) atoms to form corner-sharing FeO4 tetrahedra. Both Fe(1)-O(1) bond lengths are 1.67 Å. There is one shorter (1.80 Å) and one longer (1.84 Å) Fe(1)-O(2) bond length. There are two inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to three equivalent K(1) and one Fe(1) atom. In the second O site, O(2) is bonded in a distorted bent 120 degrees geometry to two equivalent K(1) and two equivalent Fe(1) atoms.