Hydrogenation of CO2 to formic acid with iridiumIII(bisMETAMORPhos)(hydride): the role of a dormant fac-IrIII(trihydride) and an active trans-IrIII(dihydride) species

S. Oldenhof; J. I. van der Vlugt; J. N. H. Reek

doi:10.1039/C5CY01476J

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Hydrogenation of CO₂ to formic acid with iridium^III(bisMETAMORPhos)(hydride): the role of a dormant fac-Ir^III(trihydride) and an active trans-Ir^III(dihydride) species†

S. Oldenhof,^a J. I. van der Vlugt*^a and J. N. H. Reek*^a

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* Corresponding authors

^a Homogeneous, Bioinspired & Supramolecular Catalysis, van't Hoff Institute for Molecular Sciences, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The Netherlands
E-mail: j.i.vandervlugt@uva.nl, j.n.h.reek@uva.nl

Abstract

An Ir^III-monohydride species bearing a chemoresponsive ligand is active in catalytic CO₂ hydrogenation to formic acid with DBU as the exogenous base. Spectroscopic and computational data reveal a trans-Ir^III-dihydride as the essential catalytic intermediate and an Ir^III(H)₃ species as the dormant off-cycle product. This insight will aid future design of improved CO₂ reduction catalysts.

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Article information

DOI: https://doi.org/10.1039/C5CY01476J
Article type: Communication
Submitted: 20 ذو القعدة 1436
Accepted: 19 ذو الحجة 1436
First published: 25 ذو الحجة 1436
This article is Open Access

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Catal. Sci. Technol., 2016,6, 404-408

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Hydrogenation of CO₂ to formic acid with iridium^III(bisMETAMORPhos)(hydride): the role of a dormant fac-Ir^III(trihydride) and an active trans-Ir^III(dihydride) species

S. Oldenhof, J. I. van der Vlugt and J. N. H. Reek, Catal. Sci. Technol., 2016, 6, 404 DOI: 10.1039/C5CY01476J

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