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Efficient Homogeneous Catalysis in the Reduction of CO 2 to CO

Efficient Homogeneous Catalysis in the Reduction of CO 2 to CO. David S. Laitar, Peter Mu¨ller, and Joseph P. Sadighi*. Acetyl-CoA synthase/CO dehydrogenase.

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Efficient Homogeneous Catalysis in the Reduction of CO 2 to CO

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  1. Efficient Homogeneous Catalysis in the Reduction of CO2 to CO David S. Laitar, Peter Mu¨ller, and Joseph P. Sadighi*

  2. Acetyl-CoA synthase/CO dehydrogenase CODH/ACS, a nanomachine.CODH is represented as a transformer for generating CO and ACS as a condenser that converts CO, a methyl group, and CoA to form acetyl-CoA, a cellular biosynthetic building block and source of ATP. Ragsdale, S. W. Crit. ReV. Biochem. Mol. Biol. 2004, 39, 165-195.

  3. Due to the large energy input required to generate it from CO2, CO is produced industrially from fossil fuels. • Even with strong reducing agents, however, overcoming the O=CO bond enthalpy of 532 kJ/mol often presents kinetic difficulties. Marks, T. J.; et al. Chem. ReV. 2001, 101, 953-996. Ueno, A.; Sato, T.; Todo, N.; Kotera, Y.; Takasaki, S. Chem. Lett. 1980,1067-1070. Yin, X. L.; Moss, J. R. Coord. Chem. ReV. 1999, 181, 27-59. Leitner, W. Coord. Chem. ReV. 1996, 153, 257-284.

  4. Conversion of (pinB)2 to (pinB)2O 100% (complete) turnover freq. =>1000 turnovers within 20h 81% 100% (complete) turnover freq. =>100 turnovers within 1h ※The complex (ICy)Cu(Bpin), generated in situ, is more prone to thermal decomposition than 1.

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