C60-induced alkyne–alkyne coupling and alkyne scission reactions of a tungsten tris(diphenylacetylene) complex†
Abstract
Reaction of W(NCMe)(η2-PhCCPh)3 with C60 affords W(η3-NC(Me)C60)(η4,η2-C6Ph6) (2) and W(CPh)(NCMe)(η2-C60) (η3,η2-C5Ph5) (3). The hexaphenylbenzene species of 2 shows an η4-butadiene + η2-olefin bonding mode and the