DOI: 10.17188/1290678
title: Materials Data on Li10Cu(SiO5)2 by Materials Project

description: Li10Cu(SiO5)2 is Aluminum carbonitride-derived structured and crystallizes in the monoclinic C2/m space group. The structure is three-dimensional. there are seven inequivalent Li1+ sites. In the first Li1+ site, Li1+ is bonded in a 5-coordinate geometry to five O2- atoms. There are a spread of Li–O bond distances ranging from 1.98–2.69 Å. In the second Li1+ site, Li1+ is bonded in a 5-coordinate geometry to five O2- atoms. There are a spread of Li–O bond distances ranging from 1.96–2.50 Å. In the third Li1+ site, Li1+ is bonded in a 4-coordinate geometry to four O2- atoms. There are a spread of Li–O bond distances ranging from 1.91–2.46 Å. In the fourth Li1+ site, Li1+ is bonded to four O2- atoms to form distorted LiO4 tetrahedra that share corners with two equivalent LiO5 square pyramids, a cornercorner with one SiO4 tetrahedra, corners with three LiO4 tetrahedra, an edgeedge with one LiO4 tetrahedra, and an edgeedge with one SiO4 tetrahedra. There are a spread of Li–O bond distances ranging from 1.91–2.06 Å. In the fifth Li1+ site, Li1+ is bonded to five O2- atoms to form distorted LiO5 square pyramids that share corners with three equivalent SiO4 tetrahedra, corners with seven LiO4 tetrahedra, an edgeedge with one SiO4 tetrahedra, and edges with three LiO4 tetrahedra. There are a spread of Li–O bond distances ranging from 2.10–2.34 Å. In the sixth Li1+ site, Li1+ is bonded to four O2- atoms to form LiO4 tetrahedra that share a cornercorner with one LiO5 square pyramid, corners with three LiO4 tetrahedra, corners with four SiO4 tetrahedra, an edgeedge with one LiO5 square pyramid, and edges with two LiO4 tetrahedra. There are a spread of Li–O bond distances ranging from 1.87–2.03 Å. In the seventh Li1+ site, Li1+ is bonded to four O2- atoms to form LiO4 tetrahedra that share a cornercorner with one LiO5 square pyramid, corners with four LiO4 tetrahedra, corners with four equivalent SiO4 tetrahedra, an edgeedge with one LiO5 square pyramid, and edges with two equivalent LiO4 tetrahedra. There are a spread of Li–O bond distances ranging from 1.95–2.07 Å. Cu2+ is bonded in a distorted trigonal non-coplanar geometry to three O2- atoms. There is one shorter (1.83 Å) and two longer (1.91 Å) Cu–O bond length. 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 LiO4 tetrahedra, an edgeedge with one LiO5 square pyramid, and edges with two equivalent LiO4 tetrahedra. There is three shorter (1.65 Å) and one longer (1.66 Å) Si–O bond length. In the second Si4+ site, Si4+ is bonded to four O2- atoms to form SiO4 tetrahedra that share corners with three equivalent LiO5 square pyramids and corners with twelve LiO4 tetrahedra. There are a spread of Si–O bond distances ranging from 1.65–1.68 Å. There are eight inequivalent O2- sites. In the first O2- site, O2- is bonded in a 6-coordinate geometry to four Li1+ and two equivalent Cu2+ atoms. In the second O2- site, O2- is bonded to four Li1+ and one Si4+ atom to form OLi4Si trigonal bipyramids that share corners with two equivalent OLi5Cu octahedra and an edgeedge with one OLi4Si trigonal bipyramid. The corner-sharing octahedral tilt angles are 28°. In the third O2- site, O2- is bonded to five Li1+ and one Cu2+ atom to form distorted corner-sharing OLi5Cu octahedra. In the fourth O2- site, O2- is bonded in a 5-coordinate geometry to five Li1+ and one Si4+ atom. In the fifth O2- site, O2- is bonded in a 6-coordinate geometry to five Li1+ and one Si4+ atom. In the sixth O2- site, O2- is bonded in a 5-coordinate geometry to four Li1+ and one Si4+ atom. In the seventh O2- site, O2- is bonded in a 4-coordinate geometry to four Li1+ and one Si4+ atom. In the eighth O2- site, O2- is bonded in a 5-coordinate geometry to four Li1+ and one Si4+ atom.