Alkyne coupling in rhenacarbaborane chemistry. Structure of [1,2-μ-NHBut-2,2-(CO)2-3,2-σ:η2-{C(CHBut)–CHCHBut}-closo-2,1-ReCB10H9]
Abstract
The butadienyl moiety in the title compound is bound to both cage-boron and rhenium vertices, and arises from coupling of two alkyne molecules at the rhenium centre, unprecedented in metallacarbaborane chemistry.