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Supramolecular assemblies of Cu(II) with a tetraphenylethene-imidazole ligand for tuning photocatalytic CO 2 reduction.
- Source :
-
Chemical communications (Cambridge, England) [Chem Commun (Camb)] 2024 Feb 20; Vol. 60 (16), pp. 2204-2207. Date of Electronic Publication: 2024 Feb 20. - Publication Year :
- 2024
-
Abstract
- Cu(II) supramolecular assemblies [Cu <subscript>2</subscript> (tipe) <subscript>2</subscript> (H <subscript>2</subscript> O) <subscript>2</subscript> ](NO <subscript>3</subscript> ) <subscript>4</subscript> ·2.5H <subscript>2</subscript> O (CuN4) and [Cu <subscript>2</subscript> Cl <subscript>4</subscript> (tipe)(CH <subscript>3</subscript> CN)]·H <subscript>2</subscript> O (CuN2Cl2) (tipe = 1,1,2,2-tetrakis(4-(imidazole-1-yl)phenyl)ethene) were synthesized and utilized for photocatalytic CO <subscript>2</subscript> reduction. CuN4 exhibits CO production of up to 891 μmol g <subscript>cat</subscript> <superscript>-1</superscript> with a selectivity of 79.9%, while CuN2Cl2 gives low CO production of 206 μmol g <subscript>cat</subscript> <superscript>-1</superscript> but with a high selectivity of >99.9% in 5 h. The experimental and DFT calculation results indicate that the coordination environment and non-covalent interactions within the assemblies have a great impact on the photocatalytic CO <subscript>2</subscript> reduction behavior. This work provides useful insights on Cu(II) assembly catalyzed CO <subscript>2</subscript> photoreduction.
Details
- Language :
- English
- ISSN :
- 1364-548X
- Volume :
- 60
- Issue :
- 16
- Database :
- MEDLINE
- Journal :
- Chemical communications (Cambridge, England)
- Publication Type :
- Academic Journal
- Accession number :
- 38304957
- Full Text :
- https://doi.org/10.1039/d3cc05514k