Generation of maghemite nanocrystals from iron–sulfur centres

Samya Banerjee; Andreas Omlor; Juliusz A. Wolny; Yisong Han; Frederik Lermyte; Amy E. Godfrey; Peter B. O'Connor; Volker Schünemann; Mohsen Danaie; Peter J. Sadler

doi:10.1039/C9DT00514E

Generation of maghemite nanocrystals from iron–sulfur centres†

Samya Banerjee,

^a Andreas Omlor,

^b Juliusz A. Wolny,

^b Yisong Han,

^c Frederik Lermyte,

^ad Amy E. Godfrey,

^a Peter B. O'Connor,

^a Volker Schünemann,

^b Mohsen Danaie

*^e and Peter J. Sadler

*^a

Author affiliations

* Corresponding authors

^a Department of Chemistry, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, UK
E-mail: P.J.Sadler@warwick.ac.uk

^b Department of Physics, Technische Universität Kaiserslautern, Erwin-Schrödinger-Straße 46, 67663 Kaiserslautern, Germany

^c Department of Physics, University of Warwick, Gibbet Hill Road, Coventry CV4 7Al, UK

^d School of Engineering, University of Warwick, Gibbet Hill Road, Coventry CV4 7Al, UK

^e Diamond Light Source Ltd, electron Physical Science Imaging Centre (ePSIC), Harwell Science & Innovation Campus, Didcot, Oxfordshire OX11 0DE, UK
E-mail: mohsen.danaie@diamond.ac.uk

Abstract

Iron oxide nano-crystals 0.1–1.1 μm in diameter were generated on sulfur-doped amorphous carbon surfaces by electron beam irradiation of the novel 13e⁻ high-spin complex [Fe(4-methyl-1,2-benzenedithiolate)₂][NHEt₃] encapsulated in a triblock copolymer. Possible relevance to iron nano-mineralization from Fe–S ferredoxin proteins and iron dysregulation in neurological disorders is discussed.

This article is part of the themed collection: The central role of the d-block metals in the periodic table

Dalton Transactions

Generation of maghemite nanocrystals from iron–sulfur centres†

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