Materials Data on Sm2(ReB2)3 by Materials Project
Sm2(ReB2)3 crystallizes in the monoclinic C2/c space group. The structure is three-dimensional. Sm3+ is bonded in a 10-coordinate geometry to ten B3- atoms. There are a spread of Sm–B bond distances ranging from 2.73–3.18 Å. There are two inequivalent Re4+ sites. In the first Re4+ site, Re4+ is bonded in a 6-coordinate geometry to six B3- atoms. There are a spread of Re–B bond distances ranging from 2.13–2.30 Å. In the second Re4+ site, Re4+ is bonded in a 8-coordinate geometry to eight B3- atoms. There are a spread of Re–B bond distances ranging from 2.25–2.38 Å. There are three inequivalent B3- sites. In the first B3- site, B3- is bonded in a 8-coordinate geometry to three equivalent Sm3+, four Re4+, and one B3- atom. The B–B bond length is 1.82 Å. In the second B3- site, B3- is bonded in a 9-coordinate geometry to four equivalent Sm3+, three Re4+, and two B3- atoms. There is one shorter (1.82 Å) and one longer (1.88 Å) B–B bond length. In the third B3- site, B3- is bonded in a 9-coordinate geometry to three equivalent Sm3+, three Re4+, and three B3- atoms. The B–B bond length is 1.80 Å.