Materials Data on PuAl4 by Materials Project
PuAl4 crystallizes in the orthorhombic Imma space group. The structure is three-dimensional. Pu is bonded in a 11-coordinate geometry to thirteen Al atoms. There are a spread of Pu–Al bond distances ranging from 2.97–3.11 Å. There are three inequivalent Al sites. In the first Al site, Al is bonded to four equivalent Pu and eight Al atoms to form a mixture of distorted edge, corner, and face-sharing AlPu4Al8 cuboctahedra. There are a spread of Al–Al bond distances ranging from 2.76–3.07 Å. In the second Al site, Al is bonded in a 9-coordinate geometry to three equivalent Pu and seven Al atoms. There are a spread of Al–Al bond distances ranging from 2.61–3.07 Å. In the third Al site, Al is bonded in a 3-coordinate geometry to three equivalent Pu and ten Al atoms.