Materials Data on PrAl5Ni2 by Materials Project
PrNi2Al5 crystallizes in the orthorhombic Immm space group. The structure is three-dimensional. Pr is bonded in a 12-coordinate geometry to four equivalent Ni and fourteen Al atoms. All Pr–Ni bond lengths are 3.22 Å. There are a spread of Pr–Al bond distances ranging from 3.33–3.55 Å. Ni is bonded in a 9-coordinate geometry to two equivalent Pr and seven Al atoms. There are a spread of Ni–Al bond distances ranging from 2.29–2.52 Å. There are two inequivalent Al sites. In the first Al site, Al is bonded in a linear geometry to two equivalent Pr and two equivalent Ni atoms. In the second Al site, Al is bonded in a distorted trigonal non-coplanar geometry to three equivalent Pr and three equivalent Ni atoms.
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