Surface enhanced Raman scattering of trans-3-hydroxycinnamic acid adsorbed on silver nanoparticles
authors Sardo, M; Ruano, C; Castro, JL; Lopez-Tocon, I; Ribeiro-Claro, PJA; Otero, JC
nationality International
journal CHEMICAL PHYSICS LETTERS
keywords CHARGE-TRANSFER MECHANISM; RESONANCE RAMAN; SELECTION-RULES; SPECTROSCOPY; ELECTRODE; PYRIDINE; COMPLEX; STATES
abstract SERS of trans-3-hydroxycinnamic acid adsorbed on silver colloids have been analyzed in order to detect resonant charge transfer processes similar to a resonance Raman mechanism, involving the photoinduced transfer of an electron from the metal to the adsorbate (SERS-CT). Theoretical SERS-CT intensities for the neutral, anionic and dianionic forms have been calculated and it was found that the active SERS species corresponds to cinnamate ion linked to the metal through its carboxylate group. Moreover, it has been shown that the SERS-CT mechanism is operating in the SERS, explaining the strong enhancement of the band at ca. 1600 cm (1), assigned to the 8a mode. (C) 2008 Elsevier B.V. All rights reserved.
publisher ELSEVIER SCIENCE BV
issn 0009-2614
year published 2008
volume 467
issue 1-3
beginning page 101
ending page 104
digital object identifier (doi) 10.1016/j.cplett.2008.10.083
web of science category Chemistry, Physical; Physics, Atomic, Molecular & Chemical
subject category Chemistry; Physics
unique article identifier WOS:000261407000022
  ciceco authors
  impact metrics
journal analysis (jcr 2019):
journal impact factor 2.029
5 year journal impact factor 1.724
category normalized journal impact factor percentile 40.473
dimensions (citation analysis):
altmetrics (social interaction):



 


Sponsors

1suponsers_list_ciceco.jpg