Materials Data on Na2CuF4 by Materials Project

Abstract

Na2CuF4 crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. Na1+ is bonded in a 7-coordinate geometry to seven F1- atoms. There are a spread of Na–F bond distances ranging from 2.31–2.68 Å. Cu2+ is bonded to six F1- atoms to form edge-sharing CuF6 octahedra. There are a spread of Cu–F bond distances ranging from 1.93–2.49 Å. There are two inequivalent F1- sites. In the first F1- site, F1- is bonded in a 5-coordinate geometry to three equivalent Na1+ and two equivalent Cu2+ atoms. In the second F1- site, F1- is bonded in a 5-coordinate geometry to four equivalent Na1+ and one Cu2+ atom.