Abstract
Reversible hydrogen storage in the form of stable and mostly harmless chemical substances such as formic acid (FA) is a cornerstone of a fossil fuels-free economy. In the past, we have reported a primary amine-functionalized bifunctional iridium(III)-PC(sp3)P pincer complex as a mild and chemoselective catalyst for the additive-free decomposition of neat formic acid. In this manuscript, we report on the successful application of a redesigned complex bearing tertiary amine functionality as a catalyst for mild hydrogenation of CO2 to formic acid. The catalyst demonstrates TON up to 6×104 and TOF up to 1.7×104 h−1. In addition to the practical value of the catalyst, experimental and computational mechanistic studies provide the rationale for the design of improved next-generation catalysts.
Original language | American English |
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Article number | e202301915 |
Journal | Chemistry - A European Journal |
Volume | 29 |
Issue number | 63 |
DOIs | |
State | Published - 13 Nov 2023 |
Bibliographical note
Publisher Copyright:© 2023 Wiley-VCH GmbH.
Keywords
- CO
- formic acid
- hydrogenation
- ligand-metal cooperation
- pincer complexes