Oxy Functionalization of Metal-Coordinated Heterocyclic Carbenes
摘要:
Metal-coordinated 1,3-dimethylimidazolin-2-ylidene ligands undergo osmylation by means of osmium tetraoxide to yield a new type of bimetallic, redox-stable complexes es with metals in, very different oxidation states (e.g. Cr-0/Os-VI). This oxy functionalization does not influence the metal-carbene bond in a significant way (IR and NMR spectra, single-crystal X-ray diffraction structure).