From the journal:

Chemical Communications

Nuclearity effect on water oxidation: a comparative study of dinuclear and mononuclear iron complexes†

Rong Yan,abc   Zi-Han Li,a   Qian-Cheng Luo, ORCID logo a   Na-Na Sun,*a   Johnny C. Ho ORCID logo *bc  and  Yan-Zhen Zheng ORCID logo *a  

* Corresponding authors

a Frontier Institute of Science and Technology, Interdisciplinary Research Center of Frontier Science and Technology, State Key Laboratory of Electrical Insulation and Power Equipment, MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi’an Key Laboratory of Electronic Devices and Material Chemistry, and School of Chemistry, Xi’an Jiaotong University, Xi’an, Shaanxi, P. R. China

b Department of Materials Science and Engineering, City University of, Hong Kong, 83 Tat Chee Avenue, Kowloon 999077, Hong Kong

c Shenzhen Research Institute, City University of Hong Kong, Shenzhen 518057, P. R. China

Abstract

A novel dinuclear iron complex [Fe2(Pmabt)2(Pbt)2][ClO4]2·2CH3OH (2Fe-4S, Pmbt = 2-(pyridin-2′-yl)benzothiazoline, Pbt = 2-(pyridin-2-yl)benzo[d]thiazole) is presented. The electrochemical water oxidation properties manifested that 2Fe-4S exhibits a sevenfold higher TOF value compared to the mononuclear counterpart. Kinetic isotope effects (KIEs) showed the distinct O–O bond formation mechanism of the two complexes, underscoring the significant influence of nuclearity on catalytic behavior in water oxidation processes.

Graphical abstract: Nuclearity effect on water oxidation: a comparative study of dinuclear and mononuclear iron complexes

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Article information

DOI
https://doi.org/10.1039/D5CC02306H
Article type
Communication
Submitted
25 Apr 2025
Accepted
16 Jun 2025
First published
19 Jun 2025

Chem. Commun., 2025, Advance Article

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Nuclearity effect on water oxidation: a comparative study of dinuclear and mononuclear iron complexes

R. Yan, Z. Li, Q. Luo, N. Sun, J. C. Ho and Y. Zheng, Chem. Commun., 2025, Advance Article , DOI: 10.1039/D5CC02306H

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