Materials Data on HoGe2Ir by Materials Project

Abstract

HoIrGe2 crystallizes in the orthorhombic Immm space group. The structure is three-dimensional. there are two inequivalent Ho sites. In the first Ho site, Ho is bonded in a 8-coordinate geometry to six equivalent Ir and nine Ge atoms. There are four shorter (3.23 Å) and two longer (3.29 Å) Ho–Ir bond lengths. There are a spread of Ho–Ge bond distances ranging from 2.95–3.51 Å. In the second Ho site, Ho is bonded in a 8-coordinate geometry to four equivalent Ir and ten Ge atoms. All Ho–Ir bond lengths are 3.17 Å. There are a spread of Ho–Ge bond distances ranging from 3.25–3.41 Å. Ir is bonded in a 10-coordinate geometry to five Ho and five Ge atoms. There are a spread of Ir–Ge bond distances ranging from 2.47–2.63 Å. There are three inequivalent Ge sites. In the first Ge site, Ge is bonded in a 8-coordinate geometry to four Ho, three equivalent Ir, and one Ge atom. The Ge–Ge bond length is 2.72 Å. In the second Ge site, Ge is bonded in a 9-coordinate geometry to six Ho, two equivalent Ir, and one Ge atom. The Ge–Ge bond length is 2.48 Å. In the third Ge site, Ge is bonded in a 2-coordinate geometry to five Ho and two equivalent Ir atoms.