Deposition of intact tetrairon(III) single molecule magnet monolayers on gold: an STM, XPS, and ToF-SIMS investigation

Francesco Pineider; Matteo Mannini; Chiara Danieli; Lidia Armelao; Federica M. Piras; Agnese Magnani; Andrea Cornia; Roberta Sessoli

doi:10.1039/B916895H

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Journal of Materials Chemistry

Issue 1, 2010

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Deposition of intact tetrairon(III) single molecule magnet monolayers on gold: an STM, XPS, and ToF-SIMS investigation

Francesco Pineider , Matteo Mannini , Chiara Danieli , Lidia Armelao , Federica M. Piras , Agnese Magnani , Andrea Cornia and Roberta Sessoli

J. Mater. Chem., 2010, 20, 187-194

DOI: 10.1039/B916895H
Received 17 Aug 2009, Accepted 02 Oct 2009
First published on the web 09 Nov 2009
This article is part of the collection: 20th anniversary starts here!

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Abstract
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The ability of a tetranuclear iron(III) single-molecule magnet functionalized with thioacetyl-terminated ligands to form monolayers on gold has been investigated by a multitechnique approach based on STM, XPS and ToF-SIMS. We discuss in detail several aspects, which are relevant to the reported observation of a memory effect on the monolayer prepared from dichloromethane (Mannini et al., Nat. Mater., 2009, 8, 194). In particular we show that the adsorbate comprises intact surface-bound Fe₄ clusters as opposed to microcrystals or multilayers. The influence of the solvent used for the self-assembly process on the morphology, composition and structure of the adsorbate is also studied for four different solvents (dichloromethane, n-hexane, toluene, 1,4-dioxane).

Abstract from Mass Spectrometry Bulletin 2010

Secondary ion mass spectrometry, Surface, Time-of-flight spectrometer.

Abstract from Mass Spectrometry Bulletin 2010

Secondary ion mass spectrometry, Surface, Time-of-flight spectrometer.

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Supplementary Info

Details of ligand and samples preparation, ²H-NMR stability experiments, XPS and ToF-SIMSadditional spectra
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Francesco Pineider
Matteo Mannini
Chiara Danieli
Lidia Armelao
Federica M. Piras
Agnese Magnani
Andrea Cornia
Roberta Sessoli

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Journal of Materials Chemistry

Deposition of intact tetrairon(III) single molecule magnet monolayers on gold: an STM, XPS, and ToF-SIMS investigation

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