A mechanistic study into the interconversion of rhodium alkyne, alkynyl hydride and vinylidene complexes†
Abstract
The conversion of the alkyne complex RhCl(PPri3)2(η2-PhCCH) into its vinylidene isomer RhCl(PPri3)2(
C
CPhH) has been monitored viaNMR
CPh). The kinetic profile of the reaction demonstrates that this species is an intermediate in the formation of the vinylidene complex.