Materials Data on Li3FeSiO5 by Materials Project
Li3FeSiO5 is Stannite-like structured and crystallizes in the monoclinic Pc space group. The structure is three-dimensional. there are six inequivalent Li1+ sites. In the first Li1+ site, Li1+ is bonded to four O2- atoms to form LiO4 tetrahedra that share corners with three FeO4 tetrahedra, corners with three SiO4 tetrahedra, and corners with six LiO4 tetrahedra. There are a spread of Li–O bond distances ranging from 1.96–2.08 Å. In the second Li1+ site, Li1+ is bonded to four O2- atoms to form LiO4 tetrahedra that share corners with three FeO4 tetrahedra, corners with three SiO4 tetrahedra, and corners with six LiO4 tetrahedra. There are a spread of Li–O bond distances ranging from 1.96–2.07 Å. In the third Li1+ site, Li1+ is bonded to four O2- atoms to form LiO4 tetrahedra that share a cornercorner with one FeO4 tetrahedra, corners with four SiO4 tetrahedra, and corners with seven LiO4 tetrahedra. There are a spread of Li–O bond distances ranging from 1.99–2.10 Å. In the fourth Li1+ site, Li1+ is bonded to four O2- atoms to form LiO4 tetrahedra that share a cornercorner with one FeO4 tetrahedra, corners with four SiO4 tetrahedra, and corners with seven LiO4 tetrahedra. There are a spread of Li–O bond distances ranging from 1.99–2.10 Å. In the fifth Li1+ site, Li1+ is bonded to four O2- atoms to form LiO4 tetrahedra that share corners with three SiO4 tetrahedra, corners with four FeO4 tetrahedra, and corners with five LiO4 tetrahedra. There are a spread of Li–O bond distances ranging from 1.93–2.10 Å. In the sixth Li1+ site, Li1+ is bonded to four O2- atoms to form LiO4 tetrahedra that share corners with three SiO4 tetrahedra, corners with four FeO4 tetrahedra, and corners with five LiO4 tetrahedra. There are a spread of Li–O bond distances ranging from 1.93–2.11 Å. There are two inequivalent Fe3+ sites. In the first Fe3+ site, Fe3+ is bonded to four O2- atoms to form FeO4 tetrahedra that share corners with two equivalent FeO4 tetrahedra, corners with two equivalent SiO4 tetrahedra, and corners with eight LiO4 tetrahedra. There are a spread of Fe–O bond distances ranging from 1.89–1.93 Å. In the second Fe3+ site, Fe3+ is bonded to four O2- atoms to form FeO4 tetrahedra that share corners with two equivalent FeO4 tetrahedra, corners with two equivalent SiO4 tetrahedra, and corners with eight LiO4 tetrahedra. There are a spread of Fe–O bond distances ranging from 1.89–1.93 Å. There are two inequivalent Si4+ sites. In the first Si4+ site, Si4+ is bonded to four O2- atoms to form SiO4 tetrahedra that share corners with two equivalent FeO4 tetrahedra and corners with ten LiO4 tetrahedra. There are a spread of Si–O bond distances ranging from 1.62–1.71 Å. In the second Si4+ site, Si4+ is bonded to four O2- atoms to form SiO4 tetrahedra that share corners with two equivalent FeO4 tetrahedra and corners with ten LiO4 tetrahedra. There are a spread of Si–O bond distances ranging from 1.62–1.71 Å. There are ten inequivalent O2- sites. In the first O2- site, O2- is bonded to three Li1+ and one Si4+ atom to form corner-sharing OLi3Si tetrahedra. In the second O2- site, O2- is bonded to two Li1+ and two Fe3+ atoms to form corner-sharing OLi2Fe2 tetrahedra. In the third O2- site, O2- is bonded to two Li1+ and two Fe3+ atoms to form corner-sharing OLi2Fe2 tetrahedra. In the fourth O2- site, O2- is bonded to three Li1+ and one Si4+ atom to form corner-sharing OLi3Si tetrahedra. In the fifth O2- site, O2- is bonded to three Li1+ and one Si4+ atom to form corner-sharing OLi3Si tetrahedra. In the sixth O2- site, O2- is bonded to three Li1+ and one Si4+ atom to form corner-sharing OLi3Si tetrahedra. In the seventh O2- site, O2- is bonded to two Li1+, one Fe3+, and one Si4+ atom to form corner-sharing OLi2FeSi tetrahedra. In the eighth O2- site, O2- is bonded to two Li1+, one Fe3+, and one Si4+ atom to form corner-sharing OLi2FeSi tetrahedra. In the ninth O2- site, O2- is bonded to two Li1+, one Fe3+, and one Si4+ atom to form corner-sharing OLi2FeSi tetrahedra. In the tenth O2- site, O2- is bonded to two Li1+, one Fe3+, and one Si4+ atom to form corner-sharing OLi2FeSi tetrahedra.