Materials Data on ErAl4Ni by Materials Project

Abstract

ErNiAl4 crystallizes in the orthorhombic Cmcm space group. The structure is three-dimensional. Er is bonded in a 5-coordinate geometry to two equivalent Ni and thirteen Al atoms. Both Er–Ni bond lengths are 3.16 Å. There are a spread of Er–Al bond distances ranging from 2.96–3.33 Å. Ni is bonded in a 7-coordinate geometry to two equivalent Er and seven Al atoms. There are a spread of Ni–Al bond distances ranging from 2.30–2.48 Å. There are three inequivalent Al sites. In the first Al site, Al is bonded in a 1-coordinate geometry to three equivalent Er, one Ni, and four equivalent Al atoms. All Al–Al bond lengths are 2.85 Å. In the second Al site, Al is bonded in a 3-coordinate geometry to three equivalent Er, three equivalent Ni, and one Al atom. The Al–Al bond length is 2.91 Å. In the third Al site, Al is bonded in a distorted q6 geometry to four equivalent Er and six Al atoms.