Materials Data on Eu2B5Os3 by Materials Project
Eu2Os3B5 crystallizes in the monoclinic C2 space group. The structure is three-dimensional. Eu3+ is bonded in a 2-coordinate geometry to two equivalent Os1- and four B+0.60- atoms. There are one shorter (3.18 Å) and one longer (3.36 Å) Eu–Os bond lengths. There are a spread of Eu–B bond distances ranging from 2.72–3.03 Å. There are two inequivalent Os1- sites. In the first Os1- site, Os1- is bonded in a 5-coordinate geometry to five B+0.60- atoms. There are a spread of Os–B bond distances ranging from 1.98–2.26 Å. In the second Os1- site, Os1- is bonded in a 6-coordinate geometry to four equivalent Eu3+ and six B+0.60- atoms. There are a spread of Os–B bond distances ranging from 2.18–2.25 Å. There are three inequivalent B+0.60- sites. In the first B+0.60- site, B+0.60- is bonded to four equivalent Eu3+ and two equivalent Os1- atoms to form edge-sharing BEu4Os2 octahedra. In the second B+0.60- site, B+0.60- is bonded in a 5-coordinate geometry to four Os1- and one B+0.60- atom. The B–B bond length is 1.74 Å. In the third B+0.60- site, B+0.60- is bonded in a 7-coordinate geometry to two equivalent Eu3+, three Os1-, and two B+0.60- atoms. The B–B bond length is 1.68 Å.