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New Photosensitizers Based on Heteroleptic Cu$^{I}$ Complexes and CO$_{2}$ Photocatalytic Reduction with [Ni$^{II}$(cyclam)]Cl$_{2}$

Gracia, Lisa‐Lou; Luci, Luisa; Bruschi, Cecilia; Sambri, Letizia; Weis, Patrick; Fuhr, Olaf; Bizzarri, Claudia

Earth‐abundant metal complexes have been attracting increasing attention in the field of photo(redox)catalysis. In this work, the synthesis and full characterisation of four new heteroleptic Cu$^{I}$ complexes are reported, which can work as photosensitizers. The complexes bear a bulky diphosphine (DPEPhos=bis[(2‐diphenylphosphino)phenyl] ether) and a diimine chelating ligand based on 1‐benzyl‐4‐(quinol‐2′yl)‐1,2,3‐triazole. Their absorption has a relative maximum in the visible‐light region, up to 450 nm. Thus, their use in photocatalytic systems for the reduction of CO$_{2}$ with blue light in combination with the known catalyst [Ni$^{II}$(cyclam)]Cl$_{2}$ was tested. This system produced CO as the main product through visible light (λ =420 nm) with a TON up to 8 after 4 hours. This value is in line with other photocatalytic systems using the same catalyst. Nevertheless, this system is entirely noble‐metal free.

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Verlagsausgabe §
DOI: 10.5445/IR/1000122373
Veröffentlicht am 05.08.2020
DOI: 10.1002/chem.202001279
Zitationen: 2
Web of Science
Zitationen: 1
Zitationen: 3
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Nanotechnologie (INT)
Institut für Organische Chemie (IOC)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2020
Sprache Englisch
Identifikator ISSN: 0947-6539, 1521-3765
KITopen-ID: 1000122373
HGF-Programm 43.21.04 (POF III, LK 01) Molecular Engineering
Erschienen in Chemistry - a European journal
Verlag John Wiley and Sons
Band 26
Heft 44
Seiten 9929-9937
Vorab online veröffentlicht am 16.07.2020
Schlagwörter 2018-020-022509
Nachgewiesen in Dimensions
Web of Science
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