Materials Data on La3Si2Rh3 by Materials Project

Abstract

La3Rh3Si2 crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. there are two inequivalent La sites. In the first La site, La is bonded in a 4-coordinate geometry to six Rh and three equivalent Si atoms. There are a spread of La–Rh bond distances ranging from 3.02–3.39 Å. There are a spread of La–Si bond distances ranging from 3.17–3.23 Å. In the second La site, La is bonded in a 2-coordinate geometry to five Rh and four equivalent Si atoms. There are a spread of La–Rh bond distances ranging from 2.91–3.50 Å. There are two shorter (3.20 Å) and two longer (3.27 Å) La–Si bond lengths. There are two inequivalent Rh sites. In the first Rh site, Rh is bonded in a 3-coordinate geometry to five La and three equivalent Si atoms. There are a spread of Rh–Si bond distances ranging from 2.42–2.46 Å. In the second Rh site, Rh is bonded in a 9-coordinate geometry to seven La and two equivalent Si atoms. Both Rh–Si bond lengths are 2.65 Å. Si is bonded in a 4-coordinate geometry to five La and four Rh atoms.