Oxadiazole-2-thiol Adsorption on Gold Nanorods: A Joint Theoretical and Experimental Study by Using SERS, XPS, and DFT

Israa Haidar 1 Stephanie Lau-Truong 1 Jean Aubard 1 Jean-Philippe Renault 2 Nordin Felidj 1 François Maurel 1 Leïla Boubekeur-Lecaque 1
1 ITODYS UMR7086 - Interfaces, Traitements, Organisation et Dynamique des Systèmes
2 LIONS - Laboratoire Interdisciplinaire sur l'Organisation Nanométrique et Supramoléculaire
NIMBE UMR 3685 - Nanosciences et Innovation pour les Matériaux, la Biomédecine et l'Energie (ex SIS2M)
Abstract : The chemisorption of 1,3,4‐oxadiazole‐2‐thiol (ODT) on gold nanorods has been investigated by using surface‐enhanced Raman spectroscopy (SERS) and density functional theory (DFT). Although most of the SERS spectra have remarkable similarity to the normal Raman spectra of the pure analyte, the adsorption of ODT on a gold surface leads to a drastic change in its Raman spectrum and distinct vibrational features are obtained with gold nanorods and spherical nanoparticles. Simulated Raman spectra for hybrid systems that consist of an oxadiazole moiety coordinated to a Au20 gold cluster provided valuable information about the coordination mode and enabled us to assign vibration modes.
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ChemPhysChem, Wiley-VCH Verlag, 2014, 15 (16), pp.3646 - 3654. 〈10.1002/cphc.201402197〉
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Soumis le : mercredi 4 avril 2018 - 16:40:06
Dernière modification le : jeudi 5 avril 2018 - 01:25:09

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Israa Haidar, Stephanie Lau-Truong, Jean Aubard, Jean-Philippe Renault, Nordin Felidj, et al.. Oxadiazole-2-thiol Adsorption on Gold Nanorods: A Joint Theoretical and Experimental Study by Using SERS, XPS, and DFT. ChemPhysChem, Wiley-VCH Verlag, 2014, 15 (16), pp.3646 - 3654. 〈10.1002/cphc.201402197〉. 〈cea-01758665〉

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