Materials Data on Sm2(Ga3Rh)3 by Materials Project

Abstract

Sm2(RhGa3)3 crystallizes in the orthorhombic Cmcm space group. The structure is three-dimensional. Sm is bonded in a 11-coordinate geometry to eleven Ga atoms. There are a spread of Sm–Ga bond distances ranging from 3.05–3.15 Å. There are two inequivalent Rh sites. In the first Rh site, Rh is bonded in a 8-coordinate geometry to eight Ga atoms. There are four shorter (2.60 Å) and four longer (2.65 Å) Rh–Ga bond lengths. In the second Rh site, Rh is bonded in a 8-coordinate geometry to eight Ga atoms. There are a spread of Rh–Ga bond distances ranging from 2.59–2.64 Å. There are four inequivalent Ga sites. In the first Ga site, Ga is bonded in a 10-coordinate geometry to two equivalent Sm, two equivalent Rh, and six Ga atoms. There are four shorter (2.77 Å) and two longer (2.78 Å) Ga–Ga bond lengths. In the second Ga site, Ga is bonded in a 3-coordinate geometry to three equivalent Sm, three Rh, and five Ga atoms. There are a spread of Ga–Ga bond distances ranging from 2.80–2.98 Å. In the third Ga site, Ga is bonded in a 3-coordinate geometry to two equivalent Sm, three Rh, and five Ga atoms. There are one shorter (2.80 Å) and two longer (2.86 Å) Ga–Ga bond lengths. In the fourth Ga site, Ga is bonded in a 10-coordinate geometry to two equivalent Sm, two equivalent Rh, and six Ga atoms. The Ga–Ga bond length is 2.75 Å.