Seth N. Brown, Chemistry and Biochemistry, University of Notre Dame

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Presentation transcript:

Seth N. Brown, Chemistry and Biochemistry, University of Notre Dame Probing the Articulation between Electron Transfer and Bond Cleavage Using Early Metal Complexes of Redox-Active Phenoxides Seth N. Brown, Chemistry and Biochemistry, University of Notre Dame The success of fuel cells depends on catalysts that can mediate between complex bond-breaking and -making events and the flow of electrons in an external circuit. We have prepared compounds where organic electron-transfer elements are linked via phenoxides to a titanium atom that binds to model fuels such as 1,2-diolates. Abstraction of electrons from the outer arms is indeed followed by C–C bond breaking as the substrate replenishes the removed electrons. Removal of the electrons accelerates the rate of bond cleavage by a factor of over 100,000, indicating the potential viability of this strategy for fuel cell catalysis.