Materials Data on SrMg by Materials Project

Abstract

SrMg crystallizes in the orthorhombic Amm2 space group. The structure is three-dimensional. there are three inequivalent Sr sites. In the first Sr site, Sr is bonded in a 6-coordinate geometry to eight Mg atoms. There are a spread of Sr–Mg bond distances ranging from 3.45–3.90 Å. In the second Sr site, Sr is bonded in a 12-coordinate geometry to six Mg atoms. There are two shorter (3.58 Å) and four longer (3.73 Å) Sr–Mg bond lengths. In the third Sr site, Sr is bonded in a 6-coordinate geometry to eight Mg atoms. There are a spread of Sr–Mg bond distances ranging from 3.63–4.12 Å. There are three inequivalent Mg sites. In the first Mg site, Mg is bonded in a body-centered cubic geometry to eight Sr atoms. In the second Mg site, Mg is bonded in a 10-coordinate geometry to eight Sr and two equivalent Mg atoms. Both Mg–Mg bond lengths are 3.21 Å. In the third Mg site, Mg is bonded in a body-centered cubic geometry to six Sr and two equivalent Mg atoms.