NaMnO2 is Caswellsilverite-like structured and crystallizes in the tetragonal I4_1/amd space group. Na(1) is bonded to six equivalent O(1) atoms to form NaO6 octahedra that share corners with six equivalent Mn(1)O6 octahedra, edges with six equivalent Na(1)O6 octahedra, and edges with six equivalent Mn(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 9-11°. Mn(1) is bonded to six equivalent O(1) atoms to form MnO6 octahedra that share corners with six equivalent Na(1)O6 octahedra, edges with six equivalent Na(1)O6 octahedra, and edges with six equivalent Mn(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 9-11°. O(1) is bonded to three equivalent Na(1) and three equivalent Mn(1) atoms to form a mixture of corner and edge-sharing ONa3Mn3 octahedra. The corner-sharing octahedra are not tilted.
NaMnO2 is Caswellsilverite-like structured and crystallizes in the tetragonal I4_1/amd space group. Na(1) is bonded to six equivalent O(1) atoms to form NaO6 octahedra that share corners with six equivalent Mn(1)O6 octahedra, edges with six equivalent Na(1)O6 octahedra, and edges with six equivalent Mn(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 9-11°. There are four shorter (2.31 Å) and two longer (2.48 Å) Na(1)-O(1) bond lengths. Mn(1) is bonded to six equivalent O(1) atoms to form MnO6 octahedra that share corners with six equivalent Na(1)O6 octahedra, edges with six equivalent Na(1)O6 octahedra, and edges with six equivalent Mn(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 9-11°. There are four shorter (1.98 Å) and two longer (2.44 Å) Mn(1)-O(1) bond lengths. O(1) is bonded to three equivalent Na(1) and three equivalent Mn(1) atoms to form a mixture of corner and edge-sharing ONa3Mn3 octahedra. The corner-sharing octahedra are not tilted.