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Issue 14, 2015
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Versatile nano-platforms for hybrid systems: expressing spin-transition behavior on nanoparticles

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Abstract

The aim of this paper is to demonstrate the possibility of expressing molecular magnetic phenomena on hybrid nano-particles. The advantage of such composite materials is their wonderful versatility, in terms of choice of molecular compounds to be grafted on, and in terms of possibilities for integration in devices. As a first example, we designed a composite made of silica nanoparticles as cores on which Fe(II) coordination complexes displaying spin-crossover (SCO) phenomenon have been grafted in three steps involving the silanization of the SiO2 core, the anchoring of bis(1-methylimidazolyl)-type ligands and at last the coordination of octahedral Fe(II) complexes at the surface of the nanoparticles. This step-by-step procedure enables an adequate coverage of the Fe(II) complexes at the surface of the nanoparticles that allows for the appearance of the spin-transition (ST) behavior at a level detectable by SQUID magnetometry. These tailor-made particles can thus be considered as nanometric switchable units.

Graphical abstract: Versatile nano-platforms for hybrid systems: expressing spin-transition behavior on nanoparticles

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Supplementary files

Article information


Submitted
05 Jan 2015
Accepted
12 Feb 2015
First published
13 Feb 2015

This article is Open Access

J. Mater. Chem. C, 2015,3, 3350-3355
Article type
Paper
Author version available

Versatile nano-platforms for hybrid systems: expressing spin-transition behavior on nanoparticles

A. Paquirissamy, A. R. Ruyack, A. Mondal, Y. Li, R. Lescouëzec, C. Chanéac and B. Fleury, J. Mater. Chem. C, 2015, 3, 3350
DOI: 10.1039/C5TC00021A

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