Materials Data on Mg3B2Rh5 by Materials Project
Mg3Rh5B2 crystallizes in the tetragonal P4/mbm space group. The structure is three-dimensional. there are two inequivalent Mg sites. In the first Mg site, Mg is bonded in a 11-coordinate geometry to ten Rh and one B atom. There are a spread of Mg–Rh bond distances ranging from 2.81–2.95 Å. The Mg–B bond length is 2.66 Å. In the second Mg site, Mg is bonded in a body-centered cubic geometry to eight equivalent Rh atoms. All Mg–Rh bond lengths are 2.66 Å. There are two inequivalent Rh sites. In the first Rh site, Rh is bonded in a distorted body-centered cubic geometry to four equivalent Mg and four equivalent B atoms. All Rh–B bond lengths are 2.25 Å. In the second Rh site, Rh is bonded in a 8-coordinate geometry to six Mg and two equivalent B atoms. Both Rh–B bond lengths are 2.14 Å. B is bonded in a 7-coordinate geometry to one Mg and six Rh atoms.