Materials Data on Li3MnO4 by Materials Project
Li3MnO4 is Caswellsilverite-like structured and crystallizes in the orthorhombic Fmm2 space group. The structure is three-dimensional. there are four inequivalent Li sites. In the first Li site, Li is bonded to six O atoms to form LiO6 octahedra that share corners with two equivalent MnO6 octahedra, corners with four equivalent LiO6 octahedra, edges with three MnO6 octahedra, and edges with nine LiO6 octahedra. The corner-sharing octahedra tilt angles range from 5–12°. There are a spread of Li–O bond distances ranging from 2.05–2.26 Å. In the second Li site, Li is bonded to six O atoms to form LiO6 octahedra that share corners with two equivalent MnO6 octahedra, corners with four LiO6 octahedra, edges with three MnO6 octahedra, and edges with nine LiO6 octahedra. The corner-sharing octahedra tilt angles range from 5–11°. There are a spread of Li–O bond distances ranging from 2.05–2.24 Å. In the third Li site, Li is bonded to six O atoms to form LiO6 octahedra that share corners with two equivalent MnO6 octahedra, corners with four equivalent LiO6 octahedra, edges with three MnO6 octahedra, and edges with nine LiO6 octahedra. The corner-sharing octahedra tilt angles range from 6–11°. There are a spread of Li–O bond distances ranging from 2.05–2.23 Å. In the fourth Li site, Li is bonded to six O atoms to form LiO6 octahedra that share corners with two equivalent MnO6 octahedra, corners with four LiO6 octahedra, edges with three MnO6 octahedra, and edges with nine LiO6 octahedra. The corner-sharing octahedra tilt angles range from 5–12°. There are a spread of Li–O bond distances ranging from 2.04–2.24 Å. There are two inequivalent Mn sites. In the first Mn site, Mn is bonded to six O atoms to form MnO6 octahedra that share corners with six LiO6 octahedra, edges with three MnO6 octahedra, and edges with nine LiO6 octahedra. The corner-sharing octahedra tilt angles range from 5–10°. There is three shorter (1.84 Å) and three longer (2.02 Å) Mn–O bond length. In the second Mn site, Mn is bonded to six O atoms to form MnO6 octahedra that share corners with six LiO6 octahedra, edges with three MnO6 octahedra, and edges with nine LiO6 octahedra. The corner-sharing octahedra tilt angles range from 5–10°. There are a spread of Mn–O bond distances ranging from 1.84–2.03 Å. There are six inequivalent O sites. In the first O site, O is bonded to three Li and three Mn atoms to form OLi3Mn3 octahedra that share corners with six OLi5Mn octahedra and edges with twelve OLi3Mn3 octahedra. The corner-sharing octahedra tilt angles range from 5–10°. In the second O site, O is bonded to five Li and one Mn atom to form a mixture of edge and corner-sharing OLi5Mn octahedra. The corner-sharing octahedra tilt angles range from 5–10°. In the third O site, O is bonded to three Li and three Mn atoms to form OLi3Mn3 octahedra that share corners with six OLi5Mn octahedra and edges with twelve OLi3Mn3 octahedra. The corner-sharing octahedra tilt angles range from 6–10°. In the fourth O site, O is bonded to five Li and one Mn atom to form a mixture of edge and corner-sharing OLi5Mn octahedra. The corner-sharing octahedra tilt angles range from 6–10°. In the fifth O site, O is bonded to five Li and one Mn atom to form a mixture of edge and corner-sharing OLi5Mn octahedra. The corner-sharing octahedra tilt angles range from 6–10°. In the sixth O site, O is bonded to five Li and one Mn atom to form a mixture of edge and corner-sharing OLi5Mn octahedra. The corner-sharing octahedra tilt angles range from 5–10°.