Issue 25, 2024

Non-coordinating counteranion as a powerful tool to tune the activity of copper water oxidation catalysts

Abstract

Ten copper-bipyridine-type catalysts, [(bpyR)Cu(OH)2]2+, featuring diverse counteranions (OAc, Cl, SO42−, NO3, OTf) were synthesized. The observed substantial variations in turnover frequency (TOF) among these catalysts, coupled with insights gained from electrochemical investigations, underscore the pivotal influence of counteranions in fine-tuning the catalytic activity of metal complexes during water oxidation. The TOF value follows the trend of OAc > Cl > SO42− > NO3 > OTf, which is the same as the change of coordinating ability index, a™. Density Functional Theory (DFT) calculations reveal that counteranion coordination plays an important role in influencing the catalytic performance of these complexes.

Graphical abstract: Non-coordinating counteranion as a powerful tool to tune the activity of copper water oxidation catalysts

Supplementary files

Article information

Article type
Communication
Submitted
11 Mar 2024
Accepted
29 May 2024
First published
10 Jun 2024

Dalton Trans., 2024,53, 10421-10425

Non-coordinating counteranion as a powerful tool to tune the activity of copper water oxidation catalysts

X. Li, L. Wang, M. Shao, X. Song and L. Wang, Dalton Trans., 2024, 53, 10421 DOI: 10.1039/D4DT00738G

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