Catalytic hydrogenation of carbon dioxide using Ir(III)-pincer complexes

J Am Chem Soc. 2009 Oct 14;131(40):14168-9. doi: 10.1021/ja903574e.

Abstract

Catalytic hydrogenation of carbon dioxide in aqueous potassium hydroxide was performed using a newly synthesized isopropyl-substituted PNP-pincer iridium trihydride complex as a catalyst. Potassium formate was obtained with turnover numbers up to 3,500,000 and a turnover frequency of 150,000 h(-1), both of which are the highest values reported to date.