NaFeO2 is beta beryllia-derived structured and crystallizes in the orthorhombic Pna2_1 space group. Na(1) is bonded to two equivalent O(1) and two equivalent O(2) atoms to form NaO4 tetrahedra that share corners with four equivalent Na(1)O4 tetrahedra and corners with eight equivalent Fe(1)O4 tetrahedra. Fe(1) is bonded to two equivalent O(1) and two equivalent O(2) atoms to form FeO4 tetrahedra that share corners with four equivalent Fe(1)O4 tetrahedra and corners with eight equivalent Na(1)O4 tetrahedra. There are two inequivalent O sites. In the first O site, O(1) is bonded to two equivalent Na(1) and two equivalent Fe(1) atoms to form distorted corner-sharing ONa2Fe2 tetrahedra. In the second O site, O(2) is bonded to two equivalent Na(1) and two equivalent Fe(1) atoms to form corner-sharing ONa2Fe2 tetrahedra.
NaFeO2 is beta beryllia-derived structured and crystallizes in the orthorhombic Pna2_1 space group. Na(1) is bonded to two equivalent O(1) and two equivalent O(2) atoms to form NaO4 tetrahedra that share corners with four equivalent Na(1)O4 tetrahedra and corners with eight equivalent Fe(1)O4 tetrahedra. There is one shorter (2.35 Å) and one longer (2.37 Å) Na(1)-O(1) bond length. There is one shorter (2.32 Å) and one longer (2.33 Å) Na(1)-O(2) bond length. Fe(1) is bonded to two equivalent O(1) and two equivalent O(2) atoms to form FeO4 tetrahedra that share corners with four equivalent Fe(1)O4 tetrahedra and corners with eight equivalent Na(1)O4 tetrahedra. Both Fe(1)-O(1) bond lengths are 1.92 Å. There is one shorter (1.90 Å) and one longer (1.92 Å) Fe(1)-O(2) bond length. There are two inequivalent O sites. In the first O site, O(1) is bonded to two equivalent Na(1) and two equivalent Fe(1) atoms to form distorted corner-sharing ONa2Fe2 tetrahedra. In the second O site, O(2) is bonded to two equivalent Na(1) and two equivalent Fe(1) atoms to form corner-sharing ONa2Fe2 tetrahedra.