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All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on CeAl7Au3 by Materials Project

CeAu3Al7 crystallizes in the trigonal R-3c space group. The structure is three-dimensional. Ce is bonded in a 6-coordinate geometry to six equivalent Au and twelve equivalent Al atoms. All Ce–Au bond lengths are 3.29 Å. There are six shorter (3.32 Å) and six longer (3.41 Å) Ce–Al bond lengths. Au is bonded in a 9-coordinate geometry to two equivalent Ce and seven Al atoms. There are a spread of Au–Al bond distances ranging from 2.60–2.69 Å. There are two inequivalent Al sites. In the first Al site, Al is bonded in a distorted trigonal planar geometry to two equivalent Ce and three equivalent Au atoms. In the second Al site, Al is bonded in a trigonal planar geometry to three equivalent Au atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on CeAl3Au by Materials Project

CeAuAl3 crystallizes in the tetragonal I4mm space group. The structure is three-dimensional. Ce is bonded in a 8-coordinate geometry to four equivalent Au and twelve Al atoms. All Ce–Au bond lengths are 3.40 Å. There are a spread of Ce–Al bond distances ranging from 3.21–3.57 Å. Au is bonded in a 5-coordinate geometry to four equivalent Ce and five Al atoms. There are one shorter (2.46 Å) and four longer (2.55 Å) Au–Al bond lengths. There are two inequivalent Al sites. In the first Al site, Al is bonded in a distorted single-bond geometry to four equivalent Ce and one Au atom. In the second Al site, Al is bonded in a distorted bent 120 degrees geometry to four equivalent Ce and two equivalent Au atoms.

36 MATERIALS SCIENCE↗