Recent developments in electrochemical investigations into iron carbonyl complexes relevant to the iron centres of hydrogenases

Autor:	Zhiyin Xiao, Wei Zhong, Xiaoming Liu
Rok vydání:	2022
Předmět:	Iron-Sulfur Proteins Models Molecular Hydrogenase Molecular Structure Chemistry Iron Carbonyl Compounds Electrochemistry Chemical reaction Inorganic Chemistry Electron transfer Computational chemistry Hydrogen evolution Ferrocenyl group
Zdroj:	Dalton Transactions. 51:40-47
ISSN:	1477-9234 1477-9226
DOI:	10.1039/d1dt02705k
Popis:	In this brief review mainly based on our own work, we summarised the electrochemical investigations into those iron carbonyl complexes relevant to the iron centres of [FeFe]-and [Fe]-hydrogenases in following aspects: (i) electron transfer (E) coupled with a chemical reaction (C), EC process; (ii) two-electron process with potential inversion (ECisoE); and (iii) Proton-coupled electron transfer (PCET) and the role of an internal base group in non-coordination sphere. Through individual examples, these processes involved in the electrochemistry of the iron carbonyl complexes are discussed. In probing the complexes involving two-electron process with potential inversion, the co-existence of one- and two-electron for a complex is demonstrated by incorporating intramolecularly a ferrocenyl group(s) into the complex. Our studies on proton reduction catalysed by three diiron complexes involving the PCET mechanism are also briefly summarised. Finally, the perspectives of the electrochemical study in iron carbonyl complexes inspired by the iron-containing enzymes are mentioned in the sense of developing mimics of low overpotentials for hydrogen evolution through exploiting the PCET effect.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7a6d560c61c67858535b717580ff3960 https://doi.org/10.1039/d1dt02705k Zobrazit plný text záznamu