Materials Data on ErF3 by Materials Project
ErF3 is Cementite structured and crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. Er3+ is bonded in a 8-coordinate geometry to eight F1- atoms. There are a spread of Er–F bond distances ranging from 2.17–2.34 Å. There are two inequivalent F1- sites. In the first F1- site, F1- is bonded in a bent 150 degrees geometry to two equivalent Er3+ atoms. In the second F1- site, F1- is bonded in a distorted trigonal planar geometry to three equivalent Er3+ atoms.
36 MATERIALS SCIENCE↗