Materials Data on Ho3Si2(SnRh3)3 by Materials Project
Ho3Si2(Rh3Sn)3 crystallizes in the hexagonal P-62m space group. The structure is three-dimensional. Ho is bonded in a 12-coordinate geometry to ten Rh and two equivalent Si atoms. There are a spread of Ho–Rh bond distances ranging from 2.89–3.15 Å. Both Ho–Si bond lengths are 3.00 Å. There are two inequivalent Rh sites. In the first Rh site, Rh is bonded in a 8-coordinate geometry to four equivalent Ho, two equivalent Sn, and two equivalent Si atoms. Both Rh–Sn bond lengths are 2.78 Å. Both Rh–Si bond lengths are 2.42 Å. In the second Rh site, Rh is bonded in a 6-coordinate geometry to two equivalent Ho and four equivalent Sn atoms. All Rh–Sn bond lengths are 2.72 Å. Sn is bonded in a distorted body-centered cubic geometry to eight Rh atoms. Si is bonded in a 9-coordinate geometry to three equivalent Ho and six equivalent Rh atoms.