Materials Data on SmGe3Rh5 by Materials Project

Abstract

SmRh5Ge3 crystallizes in the hexagonal P6_3/m space group. The structure is three-dimensional. Sm is bonded in a 12-coordinate geometry to six Rh and six Ge atoms. There are a spread of Sm–Rh bond distances ranging from 3.16–3.25 Å. There are a spread of Sm–Ge bond distances ranging from 3.11–3.18 Å. There are five inequivalent Rh sites. In the first Rh site, Rh is bonded in a 3-coordinate geometry to three equivalent Ge atoms. There are one shorter (2.43 Å) and two longer (2.62 Å) Rh–Ge bond lengths. In the second Rh site, Rh is bonded in a 5-coordinate geometry to five Ge atoms. There are a spread of Rh–Ge bond distances ranging from 2.46–2.61 Å. In the third Rh site, Rh is bonded in a 4-coordinate geometry to two equivalent Sm and four Ge atoms. There are a spread of Rh–Ge bond distances ranging from 2.44–2.52 Å. In the fourth Rh site, Rh is bonded in a 4-coordinate geometry to two equivalent Sm and four Ge atoms. There are a spread of Rh–Ge bond distances ranging from 2.48–2.56 Å. In the fifth Rh site, Rh is bonded in a 4-coordinate geometry to two equivalent Sm and four Ge atoms. There are a spread of Rh–Ge bond distances ranging from 2.47–2.55 Å. There are three inequivalent Ge sites. In the first Ge site, Ge is bonded in a 10-coordinate geometry to two equivalent Sm and six Rh atoms. In the second Ge site, Ge is bonded in a 9-coordinate geometry to two equivalent Sm and seven Rh atoms. In the third Ge site, Ge is bonded in a 9-coordinate geometry to two equivalent Sm and seven Rh atoms.