Materials Data on Pr2Al by Materials Project
AlPr2 is Cotunnite structured and crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. there are two inequivalent Pr sites. In the first Pr site, Pr is bonded in a 5-coordinate geometry to five equivalent Al atoms. There are a spread of Pr–Al bond distances ranging from 3.19–3.54 Å. In the second Pr site, Pr is bonded in a 3-coordinate geometry to five equivalent Al atoms. There are a spread of Pr–Al bond distances ranging from 3.25–3.76 Å. Al is bonded in a 10-coordinate geometry to ten Pr atoms.
36 MATERIALS SCIENCE↗