Materials Data on B3Ru2 by Materials Project
Ru2B3 crystallizes in the hexagonal P6_3/mmc space group. The structure is three-dimensional. Ru+4.50+ is bonded in a 7-coordinate geometry to seven B3- atoms. There are one shorter (2.19 Å) and six longer (2.20 Å) Ru–B bond lengths. There are two inequivalent B3- sites. In the first B3- site, B3- is bonded to six equivalent Ru+4.50+ atoms to form distorted edge-sharing BRu6 pentagonal pyramids. In the second B3- site, B3- is bonded in a 7-coordinate geometry to four equivalent Ru+4.50+ and three equivalent B3- atoms. All B–B bond lengths are 1.86 Å.
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