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- Title
SERS investigation on the adsorption and photoreaction of 4-nitroanisole in Ag hydrosols.
- Authors
Muniz‐Miranda, Maurizio
- Abstract
The adsorption of 4-nitroanisole on silver colloidal nanoparticles was investigated by surface-enhanced Raman spectroscopy (SERS). Actually, the chemical binding with a metal substrate may play a role in changing the electronic structure of this molecule, which can be considered a push-pull chromophore, because an internal charge-transfer occurs between methoxy and nitrogroup. A SERS signal could be detected only in chloride-activated silver colloids, but the spectrum recorded with green-light excitation was not related to adsorbed 4-nitroanisole, but to its azoderivative, formed by photoreduction of the nitrogroup on the surface of the silver substrate. Copyright © 2013 John Wiley & Sons, Ltd.
- Subjects
RAMAN spectroscopy; SPECTRUM analysis; NANOPARTICLES; SUBSTRATES (Materials science) testing; NITROANISOLES
- Publication
Journal of Raman Spectroscopy, 2013, Vol 44, Issue 10, p1416
- ISSN
0377-0486
- Publication type
Article
- DOI
10.1002/jrs.4236