Materials Data on Pu(AlGa)2 by Materials Project

Abstract

Pu(GaAl)2 crystallizes in the orthorhombic Imma space group. The structure is three-dimensional. Pu is bonded in a 11-coordinate geometry to six equivalent Ga and seven Al atoms. There are four shorter (3.00 Å) and two longer (3.14 Å) Pu–Ga bond lengths. There are a spread of Pu–Al bond distances ranging from 3.05–3.14 Å. Ga is bonded in a 10-coordinate geometry to three equivalent Pu, three equivalent Ga, and four Al atoms. There are two shorter (2.60 Å) and one longer (2.76 Å) Ga–Ga bond lengths. There are a spread of Ga–Al bond distances ranging from 2.72–3.05 Å. There are two inequivalent Al sites. In the first Al site, Al is bonded in a 9-coordinate geometry to three equivalent Pu, six equivalent Ga, and four equivalent Al atoms. All Al–Al bond lengths are 3.04 Å. In the second Al site, Al is bonded in a 12-coordinate geometry to four equivalent Pu, two equivalent Ga, and four equivalent Al atoms.