Materials Data on Ho3(GePd)4 by Materials Project

Abstract

Ho3Pd4Ge4 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 12-coordinate geometry to six equivalent Pd and six Ge atoms. There are four shorter (3.06 Å) and two longer (3.12 Å) Ho–Pd bond lengths. There are two shorter (3.03 Å) and four longer (3.04 Å) Ho–Ge bond lengths. In the second Ho site, Ho is bonded to six Ge atoms to form distorted edge-sharing HoGe6 octahedra. All Ho–Ge bond lengths are 3.04 Å. Pd is bonded in a 12-coordinate geometry to three equivalent Ho and four Ge atoms. There are one shorter (2.58 Å) and three longer (2.60 Å) Pd–Ge bond lengths. There are two inequivalent Ge sites. In the first Ge site, Ge is bonded in a 9-coordinate geometry to three Ho and six equivalent Pd atoms. In the second Ge site, Ge is bonded in a 9-coordinate geometry to six Ho, two equivalent Pd, and one Ge atom. The Ge–Ge bond length is 2.68 Å.