Materials Data on SrMg2 by Materials Project

Abstract

Mg2Sr crystallizes in the orthorhombic Cmcm space group. The structure is three-dimensional. Sr is bonded in a 12-coordinate geometry to six equivalent Sr and six Mg atoms. There are four shorter (3.73 Å) and two longer (3.92 Å) Sr–Sr bond lengths. There are a spread of Sr–Mg bond distances ranging from 3.54–3.96 Å. There are two inequivalent Mg sites. In the first Mg site, Mg is bonded in a 6-coordinate geometry to four equivalent Sr and two equivalent Mg atoms. Both Mg–Mg bond lengths are 3.16 Å. In the second Mg site, Mg is bonded in a 6-coordinate geometry to two equivalent Sr and four Mg atoms. Both Mg–Mg bond lengths are 3.29 Å.