Issue 16, 2024

Supramolecular assemblies of Cu(ii) with a tetraphenylethene-imidazole ligand for tuning photocatalytic CO2 reduction

Abstract

Cu(II) supramolecular assemblies [Cu2(tipe)2(H2O)2](NO3)4·2.5H2O (CuN4) and [Cu2Cl4(tipe)(CH3CN)]·H2O (CuN2Cl2) (tipe = 1,1,2,2-tetrakis(4-(imidazole-1-yl)phenyl)ethene) were synthesized and utilized for photocatalytic CO2 reduction. CuN4 exhibits CO production of up to 891 μmol gcat−1 with a selectivity of 79.9%, while CuN2Cl2 gives low CO production of 206 μmol gcat−1 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 CO2 reduction behavior. This work provides useful insights on Cu(II) assembly catalyzed CO2 photoreduction.

Graphical abstract: Supramolecular assemblies of Cu(ii) with a tetraphenylethene-imidazole ligand for tuning photocatalytic CO2 reduction

Supplementary files

Article information

Article type
Communication
Submitted
09 Nov 2023
Accepted
15 Ian 2024
First published
22 Ian 2024

Chem. Commun., 2024,60, 2204-2207

Supramolecular assemblies of Cu(II) with a tetraphenylethene-imidazole ligand for tuning photocatalytic CO2 reduction

Z. Qiu, P. Wang, X. Zhang, J. Chen, K. Zhang, X. Lu, Y. Zhao and W. Sun, Chem. Commun., 2024, 60, 2204 DOI: 10.1039/D3CC05514K

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