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Issue 70, 2014
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Photoisomerisation and ligand-controlled reversible aggregation of azobenzene-functionalised gold nanoparticles

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Abstract

The photochemical behaviour of functionalised gold nanoparticles (AuNPs) carrying azobenzenethiolate–alkylthiolate monolayers was investigated. Repeated transcis and cistrans isomerisation cycles could be performed in all cases with high efficiency. Reversible photoinduced aggregation was observed when azothiolates with long alkyl spacers (≥C7) were combined with short (C5) alkylthiolate coligands. The choice of a coligand thus offers control over the aggregation properties of the nanoparticles.

Graphical abstract: Photoisomerisation and ligand-controlled reversible aggregation of azobenzene-functionalised gold nanoparticles

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Article information


Submitted
26 Mar 2014
Accepted
11 Jul 2014
First published
14 Jul 2014

Chem. Commun., 2014,50, 10105-10107
Article type
Communication

Photoisomerisation and ligand-controlled reversible aggregation of azobenzene-functionalised gold nanoparticles

A. Köhntopp, A. Dabrowski, M. Malicki and F. Temps, Chem. Commun., 2014, 50, 10105
DOI: 10.1039/C4CC02250E

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