Materials Data on Ho2Mg3Ge4 by Materials Project

Abstract

Mg3Ho2Ge4 crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. there are two inequivalent Mg sites. In the first Mg site, Mg is bonded in a 6-coordinate geometry to six Ge atoms. There are a spread of Mg–Ge bond distances ranging from 2.74–3.18 Å. In the second Mg site, Mg is bonded in a 6-coordinate geometry to six Ge atoms. There are a spread of Mg–Ge bond distances ranging from 2.76–3.01 Å. Ho is bonded in a 7-coordinate geometry to seven Ge atoms. There are a spread of Ho–Ge bond distances ranging from 2.95–3.21 Å. There are three inequivalent Ge sites. In the first Ge site, Ge is bonded in a 9-coordinate geometry to four Mg, four equivalent Ho, and one Ge atom. The Ge–Ge bond length is 2.59 Å. In the second Ge site, Ge is bonded in a 9-coordinate geometry to six Mg, two equivalent Ho, and one Ge atom. In the third Ge site, Ge is bonded in a 9-coordinate geometry to four Mg, four equivalent Ho, and one Ge atom. The Ge–Ge bond length is 2.66 Å.