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All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on PrNdAl4 by Materials Project

NdPrAl4 is Hexagonal Laves-derived structured and crystallizes in the cubic F-43m space group. The structure is three-dimensional. Nd is bonded in a 12-coordinate geometry to four equivalent Pr and twelve equivalent Al atoms. All Nd–Pr bond lengths are 3.50 Å. All Nd–Al bond lengths are 3.35 Å. Pr is bonded in a 12-coordinate geometry to four equivalent Nd and twelve equivalent Al atoms. All Pr–Al bond lengths are 3.35 Å. Al is bonded to three equivalent Nd, three equivalent Pr, and six equivalent Al atoms to form a mixture of edge, face, and corner-sharing AlPr3Nd3Al6 cuboctahedra. There are three shorter (2.85 Å) and three longer (2.86 Å) Al–Al bond lengths.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on PrNdAl6 by Materials Project

NdPrAl6 crystallizes in the hexagonal P-6m2 space group. The structure is three-dimensional. Nd is bonded in a 12-coordinate geometry to twelve Al atoms. There are six shorter (3.15 Å) and six longer (3.31 Å) Nd–Al bond lengths. Pr is bonded in a 12-coordinate geometry to twelve Al atoms. There are six shorter (3.15 Å) and six longer (3.31 Å) Pr–Al bond lengths. There are two inequivalent Al sites. In the first Al site, Al is bonded in a 10-coordinate geometry to two equivalent Nd, two equivalent Pr, and six Al atoms. There are four shorter (2.78 Å) and two longer (2.79 Å) Al–Al bond lengths. In the second Al site, Al is bonded in a 10-coordinate geometry to two equivalent Nd, two equivalent Pr, and six Al atoms. Both Al–Al bond lengths are 2.81 Å.

36 MATERIALS SCIENCE↗