Titanium tetrachloride binding and making arenes from acetylenes: the synthesis and X-ray crystal structure of a titanium(IV)–hexamethylbenzene complex

Abstract

Concentrated solutions of TiCl₄ in CH₂Cl₂, o-C₆H₄Cl₂, and n-hexane reacted with hexamethylbenzene producing [(η⁶-C₆Me₆)TiCl₃]⁺[Ti₂ Cl₉]^–, which can equally well be obtained from the same TiCl₄ solutions and but-2-yne.