Early/late heterobimetallic complexes have long been though of as molecular models of the interactions that occur between late transition metal catalysts and Lewis acidic metal oxide surfaces ('strong metal support interactions').  In light of this, early/late heterobimetallic complexes featuring highly polar dative M?M interactions are being targetted for applications toward catalytic CO2 reduction.  The metal-metal interactions in a Zr/Co model system have been shown to lead to a dramatic +1 V shift in reduction potential compared to monometallic Co analogues.  This might suggest that similar interactions between late metal catalysts and Lewis acidic surfaces can also be used to tune redox potentials.  Moreover, reduced Zr/Co heterobimetallic complexes have been shown to rapidly cleave CO2 into a late metal carbonyl (Co-CO) and early metal oxo (Zr-O) fragment.  Progress towards understanding the catalytic implications of this reaction and the design of new early/late heterobimetallic systems will be discussed.

Design of early/late heterobimetallic complexes for CO<sub>2</sub> activation

245th National Meeting (2013)

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Design of early/late heterobimetallic complexes for CO2 activation

Design of early/late heterobimetallic complexes for CO₂ activation