Materials Data on TbSi3Rh by Materials Project

Abstract

TbRhSi3 crystallizes in the tetragonal I4mm space group. The structure is three-dimensional. Tb is bonded in a 8-coordinate geometry to four equivalent Rh and twelve Si atoms. All Tb–Rh bond lengths are 3.32 Å. There are a spread of Tb–Si bond distances ranging from 3.07–3.34 Å. Rh is bonded in a 5-coordinate geometry to four equivalent Tb and five Si atoms. There are one shorter (2.33 Å) and four longer (2.36 Å) Rh–Si bond lengths. There are two inequivalent Si sites. In the first Si site, Si is bonded in a distorted single-bond geometry to four equivalent Tb, one Rh, and four equivalent Si atoms. All Si–Si bond lengths are 2.56 Å. In the second Si site, Si is bonded in a distorted bent 120 degrees geometry to four equivalent Tb, two equivalent Rh, and two equivalent Si atoms.