Earth-abundant metal complexes have been at- tracting increasing attention in the field of photo(redox)ca- talysis. In this work, the synthesis and full characterisation of four new heteroleptic CuI 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 CO2 with blue light in combination with the known catalyst [NiII(cyclam)]Cl2 was tested. This system produced CO as the main product through visible light (l = 420 nm) with a TON up to 8 after 4 hours. This value is in line with other photo- catalytic systems using the same catalyst. Nevertheless, this system is entirely noble-metal free.

Lisa-Lou Gracia, L.L. (2020). New Photosensitizers Based on Heteroleptic CuI Complexes and CO2 Photocatalytic Reduction with [NiII(cyclam)]Cl2. CHEMISTRY-A EUROPEAN JOURNAL, 26(44), 9929-9937 [10.1002/chem.202001279].

New Photosensitizers Based on Heteroleptic CuI Complexes and CO2 Photocatalytic Reduction with [NiII(cyclam)]Cl2

Letizia Sambri
Supervision
;
2020

Abstract

Earth-abundant metal complexes have been at- tracting increasing attention in the field of photo(redox)ca- talysis. In this work, the synthesis and full characterisation of four new heteroleptic CuI 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 CO2 with blue light in combination with the known catalyst [NiII(cyclam)]Cl2 was tested. This system produced CO as the main product through visible light (l = 420 nm) with a TON up to 8 after 4 hours. This value is in line with other photo- catalytic systems using the same catalyst. Nevertheless, this system is entirely noble-metal free.
2020
Lisa-Lou Gracia, L.L. (2020). New Photosensitizers Based on Heteroleptic CuI Complexes and CO2 Photocatalytic Reduction with [NiII(cyclam)]Cl2. CHEMISTRY-A EUROPEAN JOURNAL, 26(44), 9929-9937 [10.1002/chem.202001279].
Lisa-Lou Gracia, Luisa Luci, Cecilia Bruschi, Letizia Sambri, Patrick Weis, Olaf Fuhr, Claudia Bizzarri
File in questo prodotto:
File Dimensione Formato  
107_Claudia_YC_cover_chem.202003350.pdf

accesso aperto

Tipo: Versione (PDF) editoriale
Licenza: Licenza per Accesso Aperto. Creative Commons Attribuzione - Non commerciale (CCBYNC)
Dimensione 2.41 MB
Formato Adobe PDF
2.41 MB Adobe PDF Visualizza/Apri
chem202001279-sup-0001-misc_information.pdf

accesso aperto

Tipo: File Supplementare
Licenza: Licenza per Accesso Aperto. Creative Commons Attribuzione - Non commerciale (CCBYNC)
Dimensione 1.14 MB
Formato Adobe PDF
1.14 MB Adobe PDF Visualizza/Apri

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/771844
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 30
  • ???jsp.display-item.citation.isi??? 26
social impact