Materials Data on Si4Rh3 by Materials Project

Abstract

Rh3Si4 crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. there are three inequivalent Rh sites. In the first Rh site, Rh is bonded in a 6-coordinate geometry to six Si atoms. There are a spread of Rh–Si bond distances ranging from 2.33–2.48 Å. In the second Rh site, Rh is bonded in a 7-coordinate geometry to seven Si atoms. There are a spread of Rh–Si bond distances ranging from 2.33–2.62 Å. In the third Rh site, Rh is bonded in a 7-coordinate geometry to seven Si atoms. There are a spread of Rh–Si bond distances ranging from 2.41–2.62 Å. There are four inequivalent Si sites. In the first Si site, Si is bonded in a 6-coordinate geometry to six Rh atoms. In the second Si site, Si is bonded in a 4-coordinate geometry to four Rh atoms. In the third Si site, Si is bonded in a 6-coordinate geometry to six Rh atoms. In the fourth Si site, Si is bonded to four Rh atoms to form a mixture of distorted corner and edge-sharing SiRh4 tetrahedra.