KIT | KIT-Bibliothek | Impressum | Datenschutz

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

Gracia, Lisa-Lou 1; Luci, Luisa 1; Bruschi, Cecilia 1; Sambri, Letizia; Weis, Patrick 2; Fuhr, Olaf 3; Bizzarri, Claudia 1
1 Institut für Organische Chemie (IOC), Karlsruher Institut für Technologie (KIT)
2 Institut für Physikalische Chemie (IPC), Karlsruher Institut für Technologie (KIT)
3 Institut für Nanotechnologie (INT), Karlsruher Institut für Technologie (KIT)

Abstract:

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.


Verlagsausgabe §
DOI: 10.5445/IR/1000122373
Veröffentlicht am 05.08.2020
Originalveröffentlichung
DOI: 10.1002/chem.202001279
Scopus
Zitationen: 16
Web of Science
Zitationen: 14
Dimensions
Zitationen: 16
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
Scopus
KIT – Die Forschungsuniversität in der Helmholtz-Gemeinschaft
KITopen Landing Page