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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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Publication details

The article was received on 26 Mar 2014, accepted on 11 Jul 2014 and first published on 14 Jul 2014


Article type: Communication
DOI: 10.1039/C4CC02250E
Citation: Chem. Commun., 2014,50, 10105-10107
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    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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