Let's Have a Break

Let's Have a Break

Author: Angew. Chem. Int. Ed.

Researchers from Heriot-Watt University, Edinburgh have combined boron and organometallic chemistry, catalysis, electron transfer, and DFT calculations in a study that describes the preparation and characterization of a “fly-over bridge” species.

Stuart Macgregor, Alan Welch, and co-workers report a low-temperature metal insertion into a highly stable arene carbon-carbon bond. Reduction of 1,1’-bis(o-carborane) and subsequent reaction with a source of {Ru(p-cymene)}2+ fragments yields a species resulting from cleavage of a p-cymene ligand. According to DFT calculations, to achieve the metal insertion a second borane cluster of the metallacarborane species is necessary, which by intramoleuclar electron-transfer reductively cleaves the aromatic moiety and leads to bond breakage.

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