Materials Data on YMg5 by Materials Project

Abstract

Mg5Y crystallizes in the monoclinic C2/m space group. The structure is three-dimensional. there are three inequivalent Mg sites. In the first Mg site, Mg is bonded in a 8-coordinate geometry to seven Mg and three equivalent Y atoms. There are a spread of Mg–Mg bond distances ranging from 3.10–3.39 Å. There are two shorter (3.29 Å) and one longer (3.71 Å) Mg–Y bond lengths. In the second Mg site, Mg is bonded in a 8-coordinate geometry to seven Mg and two equivalent Y atoms. There are two shorter (3.03 Å) and two longer (3.19 Å) Mg–Mg bond lengths. Both Mg–Y bond lengths are 3.23 Å. In the third Mg site, Mg is bonded in a distorted q6 geometry to eight Mg and two equivalent Y atoms. Both Mg–Y bond lengths are 3.52 Å. Y is bonded in a 8-coordinate geometry to twelve Mg and two equivalent Y atoms. Both Y–Y bond lengths are 3.68 Å.