Heteropolynuclear Carbene Complexes with Cooperatively Interacting Metal Centers (A07)

• Subject Area: Organic Molecular Chemistry - Synthesis and Characterisation
• Term: from 2010 to 2021
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 104405829

The project aims at the preparation of heterobimetallic complexes based on a di-, tri- or poly-NHC skeleton and the use of such complexes in cooperative catalytic transformations. The heterobimetallic complexes will be prepared by linkage of mononuclear complexes bearing differently N-functionalized (azide and alkyne or diene and dienophile) NHC ligands. Alternatively, the site-selective metalation of di-NHC precursors composed of a neutral C2halogeno substituted imidazole linked to an azolium building block using the oxidative addition of the C2X bond of the azole and the deprotonation/metalation reaction of the azolium site will be employed. Suitable metal combinations are Cu/Ag for the cooperative alkynylation of trifluoromethyl ketones and Ru/Pd for the hydrodefluorination of CF bonds.

• DFG Programme: Collaborative Research Centres
• Subproject of: SFB 858: Synergetic Effects in Chemistry - From Additivity towards Cooperativity
• Applicant Institution: Universität Münster
• Project Head: Professor Dr. F. Ekkehardt Hahn