Materials Data on Pr(Ge2Rh3)2 by Materials Project

Abstract

Pr(Rh3Ge2)2 crystallizes in the hexagonal P-6m2 space group. The structure is three-dimensional. Pr is bonded to six equivalent Rh and six equivalent Ge atoms to form face-sharing PrGe6Rh6 cuboctahedra. All Pr–Rh bond lengths are 3.19 Å. All Pr–Ge bond lengths are 3.17 Å. There are two inequivalent Rh sites. In the first Rh site, Rh is bonded in a 5-coordinate geometry to five Ge atoms. There are one shorter (2.51 Å) and four longer (2.58 Å) Rh–Ge bond lengths. In the second Rh site, Rh is bonded in a 6-coordinate geometry to two equivalent Pr and four Ge atoms. There are two shorter (2.50 Å) and two longer (2.57 Å) Rh–Ge bond lengths. There are two inequivalent Ge sites. In the first Ge site, Ge is bonded in a 9-coordinate geometry to nine Rh atoms. In the second Ge site, Ge is bonded in a 8-coordinate geometry to two equivalent Pr and six Rh atoms.