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All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on CeAsRh by Materials Project

CeRhAs crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. Ce is bonded to six equivalent Rh and six equivalent As atoms to form a mixture of distorted face and edge-sharing CeAs6Rh6 cuboctahedra. There are a spread of Ce–Rh bond distances ranging from 2.85–3.22 Å. There are a spread of Ce–As bond distances ranging from 3.08–3.21 Å. Rh is bonded in a 9-coordinate geometry to six equivalent Ce and three equivalent As atoms. There are two shorter (2.50 Å) and one longer (2.51 Å) Rh–As bond lengths. As is bonded in a 9-coordinate geometry to six equivalent Ce and three equivalent Rh atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Ce(AsRh)2 by Materials Project

Ce(RhAs)2 crystallizes in the tetragonal P4/nmm space group. The structure is three-dimensional. Ce is bonded in a 12-coordinate geometry to eight Rh and eight As atoms. There are four shorter (3.30 Å) and four longer (3.32 Å) Ce–Rh bond lengths. There are four shorter (3.25 Å) and four longer (3.29 Å) Ce–As bond lengths. There are two inequivalent Rh sites. In the first Rh site, Rh is bonded in a 12-coordinate geometry to four equivalent Ce and four equivalent As atoms. All Rh–As bond lengths are 2.56 Å. In the second Rh site, Rh is bonded in a 9-coordinate geometry to four equivalent Ce and five As atoms. There are one shorter (2.42 Å) and four longer (2.47 Å) Rh–As bond lengths. There are two inequivalent As sites. In the first As site, As is bonded in a 8-coordinate geometry to four equivalent Ce and four equivalent Rh atoms. In the second As site, As is bonded in a 9-coordinate geometry to four equivalent Ce and five Rh atoms.

36 MATERIALS SCIENCE↗