Materials Data on RbMg by Materials Project

Abstract

MgRb crystallizes in the orthorhombic Amm2 space group. The structure is three-dimensional. there are two inequivalent Rb sites. In the first Rb site, Rb is bonded in a 12-coordinate geometry to four Mg atoms. There are two shorter (4.03 Å) and two longer (4.25 Å) Rb–Mg bond lengths. In the second Rb site, Rb is bonded in a 6-coordinate geometry to six Mg atoms. There are a spread of Rb–Mg bond distances ranging from 4.01–4.06 Å. There are two inequivalent Mg sites. In the first Mg site, Mg is bonded in a 8-coordinate geometry to five Rb and three Mg atoms. There are one shorter (3.03 Å) and two longer (3.14 Å) Mg–Mg bond lengths. In the second Mg site, Mg is bonded in a 10-coordinate geometry to six Rb and four equivalent Mg atoms.