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Rhenium Complexes of Pyridyl-Mesoionic Carbenes: Photochemical Properties and Electrocatalytic CO2 Reduction
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SYSNO ASEP 0524277 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Rhenium Complexes of Pyridyl-Mesoionic Carbenes: Photochemical Properties and Electrocatalytic CO2 Reduction Tvůrce(i) Suntrup, L. (DE)
Stein, F. (DE)
Klein, J. (DE)
Wilting, A. (DE)
Parlane, F. G. L. (CA)
Brown, Ch. M. (CA)
Fiedler, Jan (UFCH-W) RID, ORCID
Berlinguette, C. P. (CA)
Siewert, I. (DE)
Sarkar, B. (DE)Zdroj.dok. Inorganic Chemistry. - : American Chemical Society - ISSN 0020-1669
Roč. 59, č. 7 (2020), s. 4215-4227Poč.str. 13 s. Jazyk dok. eng - angličtina Země vyd. US - Spojené státy americké Klíč. slova carbon-dioxide ; structural-characterization ; photophysical properties ; ligands synthesis ; metal-complexes ; approximation ; triazoles ; catalysts ; water ; hydrogenation Vědní obor RIV CF - Fyzikální chemie a teoretická chemie Obor OECD Physical chemistry CEP GA18-09848S GA ČR - Grantová agentura ČR Způsob publikování Omezený přístup Institucionální podpora UFCH-W - RVO:61388955 UT WOS 000526414400009 EID SCOPUS 85082182627 DOI 10.1021/acs.inorgchem.9b02591 Anotace Mesoionic carbenes have found wide use as components of homogeneous catalysts. Recent discoveries have, however, shown that metal complexes of such ligands also have huge potential in photochemical research and in the activation of small molecules. We present here three Re-I complexes with mesoionic pyridyl-carbene ligands. The complexes display reduction steps which were investigated via UV-vis-NIR-IR spectro-electrochemistry, and these results point toward an EC mechanism. The Re-I compounds emit in the visible range in solution at room temperature with excited state lifetimes that are dependent on the substituents of the mesoionic carbenes. These complexes are also potent electrocatalysts for the selective reduction of CO2 to CO. Whereas the substituents on the carbenes have no influence on the reduction potentials, the electrocatalytic efficiency is strongly dependent on the substituents. This fact is likely a result of catalyst instability. The results presented here thus introduce mesoionic carbenes as new potent ligands for the generation of emissive Re-I complexes and for electrocatalytic CO2 reduction. Pracoviště Ústav fyzikální chemie J.Heyrovského Kontakt Michaela Knapová, michaela.knapova@jh-inst.cas.cz, Tel.: 266 053 196 Rok sběru 2021 Elektronická adresa http://hdl.handle.net/11104/0308650
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