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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,a   Matteo Mannini,ab   Chiara Danieli,c   Lidia Armelao,d   Federica M. Piras,e   Agnese Magnani,e   Andrea Cornia*c  and  Roberta Sessoli*a  
Author affiliations

* Corresponding authors

a La.M.M.-Department of Chemistry and INSTM research unit, University of Florence, Via della Lastruccia 3, Sesto Fiorentino (FI), Italy
E-mail: roberta.sessoli@unifi.it
Fax: +39-0554573372
Tel: +39-0554573268

b ISTM-CNR, URT Firenze, Via della Lastruccia 3, Sesto Fiorentino (FI), Italy

c Department of Chemistry and INSTM research unit, University of Modena and Reggio Emilia, Via G. Campi 183, Modena, Italy
E-mail: acornia@unimore.it

d ISTM-CNR and INSTM research unit, Department of Chemistry, University of Padova, Via Marzolo 1, Padova, Italy

e Department of Chemical and Biosystems Science and Technology, University of Siena, Via A. Moro 2, Siena, Italy

Abstract

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).

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

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Article information

https://doi.org/10.1039/B916895H
Submitted
17 Aug 2009
Accepted
02 Oct 2009
First published
09 Nov 2009
J. Mater. Chem., 2010,20, 187-194
Article type
Paper
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Deposition of intact tetrairon(III) single molecule magnet monolayers on gold: an STM, XPS, and ToF-SIMS investigation

F. Pineider, M. Mannini, C. Danieli, L. Armelao, F. M. Piras, A. Magnani, A. Cornia and R. Sessoli, J. Mater. Chem., 2010, 20, 187
DOI: 10.1039/B916895H

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