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Results for “B-Rb-Se”

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All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on RbBSe3 by Materials Project

RbBSe3 crystallizes in the monoclinic P2_1/c space group. The structure is one-dimensional and consists of four rubidium molecules and two BSe3 ribbons oriented in the (1, 0, 0) direction. In each BSe3 ribbon, B3- is bonded to four Se+0.67+ atoms to form corner-sharing BSe4 tetrahedra. There are two shorter (2.06 Å) and two longer (2.09 Å) B–Se bond lengths. There are three inequivalent Se+0.67+ sites. In the first Se+0.67+ site, Se+0.67+ is bonded in a single-bond geometry to one B3- atom. In the second Se+0.67+ site, Se+0.67+ is bonded in a water-like geometry to two equivalent B3- atoms. In the third Se+0.67+ site, Se+0.67+ is bonded in a single-bond geometry to one B3- atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Rb2B2Se7 by Materials Project

Rb2B2Se7 crystallizes in the monoclinic C2/c space group. The structure is three-dimensional. Rb1+ is bonded in a 9-coordinate geometry to nine Se+1.14- atoms. There are a spread of Rb–Se bond distances ranging from 3.53–3.96 Å. B3+ is bonded to four Se+1.14- atoms to form corner-sharing BSe4 tetrahedra. There are a spread of B–Se bond distances ranging from 2.05–2.08 Å. There are four inequivalent Se+1.14- sites. In the first Se+1.14- site, Se+1.14- is bonded in a distorted single-bond geometry to three equivalent Rb1+ and one B3+ atom. In the second Se+1.14- site, Se+1.14- is bonded in a distorted single-bond geometry to two equivalent Rb1+ and one B3+ atom. In the third Se+1.14- site, Se+1.14- is bonded in a distorted single-bond geometry to three equivalent Rb1+ and one B3+ atom. In the fourth Se+1.14- site, Se+1.14- is bonded in a distorted water-like geometry to two equivalent Rb1+ and two equivalent B3+ atoms.

36 MATERIALS SCIENCE↗