RbFeO2 crystallizes in the monoclinic C2/c space group. Rb(1) is bonded in a 4-coordinate geometry to four equivalent O(1) atoms. Fe(1) is bonded to four equivalent O(1) atoms to form edge-sharing FeO4 tetrahedra. O(1) is bonded in a 4-coordinate geometry to two equivalent Rb(1) and two equivalent Fe(1) atoms.
RbFeO2 crystallizes in the monoclinic C2/c space group. Rb(1) is bonded in a 4-coordinate geometry to four equivalent O(1) atoms. There are two shorter (2.87 Å) and two longer (2.99 Å) Rb(1)-O(1) bond lengths. Fe(1) is bonded to four equivalent O(1) atoms to form edge-sharing FeO4 tetrahedra. There are two shorter (1.91 Å) and two longer (1.93 Å) Fe(1)-O(1) bond lengths. O(1) is bonded in a 4-coordinate geometry to two equivalent Rb(1) and two equivalent Fe(1) atoms.