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 11 2023
Accepted
15 1 2024
First published
22 1 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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