Effect of Ligand Electronics on the Reversible Catalytic Hydrogenation of CO2 to Formic Acid Using Ruthenium Polyhydride Complexes: A Thermodynamic and Kinetic Study

Author:

Estes Deven P.1ORCID,Leutzsch Markus2ORCID,Schubert Lukas1,Bordet Alexis1ORCID,Leitner Walter13ORCID

Affiliation:

1. Max Planck Institute for Chemical Energy Conversion, Stiftstraße 34-36, Mülheim an der Ruhr 45470, Germany

2. Max Planck Institute for Coal Research, Kaiser-Wilhelm Platz 1, Mülheim an der Ruhr 45470, Germany

3. Institute for Technical and Macromolecular Chemistry, University of Stuttgart, Stuttgart 70569, Germany

Funder

Max-Planck-Gesellschaft

Publisher

American Chemical Society (ACS)

Subject

Catalysis,General Chemistry

Reference48 articles.

1. a Many reports use H2Ru(PPh3)4 as the Ru precatalyst. However, H2Ru(PPh3)4 readily converts to H4Ru(PPh3)3 under catalytic conditions as shown in refs (1d) (2a), and (2b). In ref (1c), Jessop and coworkers showed that catalyst mixtures with 4:1 P/Ru ratios have the same activities as those with 3:1 P/Ru ratios, suggesting that even when excess phosphine is present, it does not play a major role in catalysis. Thus, we consider H4Ru(PR3)3 to be relevant to the catalytic cycles of reactions with H2Ru(PR3)4.

2. CATALYTIC FIXATION OF CARBON DIOXIDE TO FORMIC ACID BY TRANSITION-METAL COMPLEXES UNDER MILD CONDITIONS

3. In Situ Formation of Ruthenium Catalysts for the Homogeneous Hydrogenation of Carbon Dioxide

4. Solid-State Structure and Solution Reactivity of [(Ph3P)4Ru(H)2] and Related Ru(II) Complexes Used in Catalysis: A Reinvestigation

5. Homogeneous Catalysis for Sustainable Hydrogen Storage in Formic Acid and Alcohols

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