Record number :
1681184
Title of article :
Evidences for the contribution of a resonant charge transfer process to the surface-enhanced Raman scattering of 2,6-dimethylpyridine
Author/Authors :
Arenas، نويسنده , , J.F and Otero، نويسنده , , J.C and Centeno، نويسنده , , S.P and Lَpez Tocَn، نويسنده , , I and Soto، نويسنده , , J، نويسنده ,
Issue Information :
هفته نامه با شماره پیاپی سال 2002
Pages :
8
From page :
163
To page :
170
Abstract :
The surface-enhanced Raman scattering spectra of 2,6-dimethylpyridine have been recorded on silver at different electrode potentials. The main feature of these spectra is the strong enhancement of the band corresponding to the 8a mode when the electrode potential becomes more negative. This enhancement has been discussed on the basis of a resonant charge transfer (CT) mechanism by using a methodology based on the analysis of the ab initio optimized equilibrium structures of the electronic states involved in the CT resonant process namely: the ground electronic states of the neutral molecule and its radical anion.
Keywords :
Solid–liquid interfaces , Metal–electrolyte interfaces , Metallic surfaces , Ab initio quantum chemical methods and calculations , silver , Vibrations of adsorbed molecules , Aromatics , Raman scattering spectroscopy
Journal title :
Surface Science
Serial Year :
2002
Link To Document :
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