Materials Data on Tb(Cd10Ni)2 by Materials Project

Abstract

Tb(NiCd10)2 crystallizes in the cubic Fd-3m space group. The structure is three-dimensional. Tb is bonded in a 4-coordinate geometry to sixteen Cd atoms. There are four shorter (3.41 Å) and twelve longer (3.45 Å) Tb–Cd bond lengths. Ni is bonded to twelve Cd atoms to form NiCd12 cuboctahedra that share corners with six equivalent NiCd12 cuboctahedra, edges with eighteen equivalent CdTbCd10Ni cuboctahedra, and faces with six equivalent CdTbCd10Ni cuboctahedra. There are six shorter (2.79 Å) and six longer (3.08 Å) Ni–Cd bond lengths. There are three inequivalent Cd sites. In the first Cd site, Cd is bonded in a 2-coordinate geometry to two equivalent Ni and ten Cd atoms. There are a spread of Cd–Cd bond distances ranging from 2.95–3.11 Å. In the second Cd site, Cd is bonded to one Tb, one Ni, and ten Cd atoms to form CdTbCd10Ni cuboctahedra that share corners with fifteen equivalent CdTbCd10Ni cuboctahedra, edges with two equivalent CdTbCd10Ni cuboctahedra, edges with three equivalent NiCd12 cuboctahedra, a faceface with one NiCd12 cuboctahedra, and faces with fifteen equivalent CdTbCd10Ni cuboctahedra. There are a spread of Cd–Cd bond distances ranging from 2.90–3.35 Å. In the third Cd site, Cd is bonded in a distorted linear geometry to two equivalent Tb and twelve equivalent Cd atoms.