Materials Data on LiCu2(CO3)2 by Materials Project

Abstract

LiCu2(CO3)2 crystallizes in the triclinic P1 space group. The structure is three-dimensional. Li1+ is bonded to four O2- atoms to form LiO4 tetrahedra that share corners with three equivalent CuO4 trigonal pyramids. There are a spread of Li–O bond distances ranging from 1.92–2.00 Å. There are two inequivalent Cu+1.50+ sites. In the first Cu+1.50+ site, Cu+1.50+ is bonded in a 4-coordinate geometry to four O2- atoms. There are a spread of Cu–O bond distances ranging from 1.92–2.61 Å. In the second Cu+1.50+ site, Cu+1.50+ is bonded to four O2- atoms to form distorted CuO4 trigonal pyramids that share corners with three equivalent LiO4 tetrahedra. There are a spread of Cu–O bond distances ranging from 1.97–2.42 Å. There are two inequivalent C4+ sites. In the first C4+ site, C4+ is bonded in a trigonal planar geometry to three O2- atoms. There is one shorter (1.29 Å) and two longer (1.30 Å) C–O bond length. In the second C4+ site, C4+ is bonded in a trigonal planar geometry to three O2- atoms. There is two shorter (1.29 Å) and one longer (1.31 Å) C–O bond length. There are six inequivalent O2- sites. In the first O2- site, O2- is bonded in a bent 120 degrees geometry to one Cu+1.50+ and one C4+ atom. In the second O2- site, O2- is bonded in a 3-coordinate geometry to two Cu+1.50+ and one C4+ atom. In the third O2- site, O2- is bonded in a distorted trigonal non-coplanar geometry to one Li1+, one Cu+1.50+, and one C4+ atom. In the fourth O2- site, O2- is bonded in a distorted trigonal planar geometry to one Li1+, one Cu+1.50+, and one C4+ atom. In the fifth O2- site, O2- is bonded in a 4-coordinate geometry to one Li1+, two Cu+1.50+, and one C4+ atom. In the sixth O2- site, O2- is bonded in a distorted trigonal planar geometry to one Li1+, one Cu+1.50+, and one C4+ atom.