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Materials Data on RbBS3 by Materials Project

RbBS3 crystallizes in the monoclinic P2_1/c space group. The structure is one-dimensional and consists of four rubidium molecules and two BS3 ribbons oriented in the (1, 0, 0) direction. In each BS3 ribbon, B3- is bonded to four S+0.67+ atoms to form corner-sharing BS4 tetrahedra. There are a spread of B–S bond distances ranging from 1.91–1.96 Å. There are three inequivalent S+0.67+ sites. In the first S+0.67+ site, S+0.67+ is bonded in a single-bond geometry to one B3- atom. In the second S+0.67+ site, S+0.67+ is bonded in a water-like geometry to two equivalent B3- atoms. In the third S+0.67+ site, S+0.67+ is bonded in a single-bond geometry to one B3- atom.

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