Selective synthesis of the nonachlorononaborate clusters B9Cl9 and B9Cl92–
Abstract
The redox relationship between dianionic and neutral boron clusters is demonstrated by the oxidation–chlorination of nonahydrononaborate (2–) with sulphuryl chloride to give the neutral nonachlorononaborate cluster, and its subsequent reduction back to the dianionic nonachlorononaborate(2–) species.