1. "Activating Carbon Monoxide and Carbon Dioxide with Organometallic Uranium Complexes- Closing the Carbon Cycle" Geoff Cloke CPD Conference June 22 nd 2012

2. The Carbon Cycle ~80 % of current global energy supply depends on fossil fuels End product of combustion is CO 2 Oil reserves are finite- peak oil will occur Create C-C bonds and/or C-H bonds from CO or CO 2 Uncertainty in petroleum cost and supply demands that alternative sources of primary organic materials be developed. Carbon monoxide as a component of synthesis gas (H 2 + CO) from coal and biomass will have a leading role in meeting these needs...........develop strategies that use CO as a two-carbon or larger building block to construct the organic materials needed for fuels and chemical manufacturing. Wayland, Science, 2006

3. Sandwiches!

4. Why Uranium ?? E / volts U IV/III : E ½ = -2.18 V What to do with all the depleted uranium??! U 235 0.7% U 238 99.3% 5,404,000 tonnes! Uranium(III)- highly reducing

5. Cyclisation of Carbon Monoxide O. T. Summerscales, F. G. N. Cloke, P. B. Hitchcock, J. C. Green, and N. Hazari, Science, 2006, 311, 829.

6. The Oxocarbons (CO) n 2-

7. The Next One in the Series- Squarate O. T. Summerscales, F. G. N. Cloke, P. B. Hitchcock, J. C. Green, and N. Hazari, J.Am.Chem. Soc, 2006, 128, 9602.

8. Carbon Dioxide Activation + A.S.P. Frey, O.T. Summerscales, F.G.N. Cloke, M.P. Coles, P.B. Hitchcock, Chem.Commun., 2009

9. Carbon Dioxide Activation 2 Nikos Tsoureas, unpublished results 2012

10. Coupling of Nitric Oxide and Carbon Monoxide + CO + NO > 600 0 C >200 0 C<300 0 C A.S.P.Frey, F.G.N.Cloke, M.P.Coles, P.B.Hitchcock, Chem. Eur. J., 2010, 16, 9305.

11. Methanol Synthesis A.S. P. Frey, F. G. N. Cloke, M. P. Coles, L. Maron, and T. Davin, Angew. Chem. Int. Ed. 2011, 50, 6881

12. The Future….. Chemically? Electrochemically- controlled potential electrolysis?