Materials Data on Li2CuAsCO7 by Materials Project

Abstract

Li2CuCAsO7 crystallizes in the monoclinic P2_1/m space group. The structure is three-dimensional. Li1+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Li–O bond distances ranging from 2.01–2.70 Å. Cu3+ is bonded in a 5-coordinate geometry to six O2- atoms. There are a spread of Cu–O bond distances ranging from 1.89–2.55 Å. C4+ is bonded in a trigonal planar geometry to three O2- atoms. There are a spread of C–O bond distances ranging from 1.27–1.34 Å. As5+ is bonded in a tetrahedral geometry to four O2- atoms. There are a spread of As–O bond distances ranging from 1.69–1.76 Å. There are six inequivalent O2- sites. In the first O2- site, O2- is bonded in a trigonal planar geometry to two equivalent Li1+ and one C4+ atom. In the second O2- site, O2- is bonded in a 2-coordinate geometry to two equivalent Li1+, one Cu3+, and one C4+ atom. In the third O2- site, O2- is bonded in a 1-coordinate geometry to two equivalent Li1+, one Cu3+, and one C4+ atom. In the fourth O2- site, O2- is bonded in a 3-coordinate geometry to one Li1+, one Cu3+, and one As5+ atom. In the fifth O2- site, O2- is bonded in a 4-coordinate geometry to two equivalent Li1+, one Cu3+, and one As5+ atom. In the sixth O2- site, O2- is bonded in a distorted tetrahedral geometry to two equivalent Li1+, one Cu3+, and one As5+ atom.