Surface-enhanced Raman spectroscopy of 4-tert-butylpyridine on a silver electrode
Article first published online: 18 MAY 2011
Copyright © 2011 John Wiley & Sons, Ltd.
Journal of Raman Spectroscopy
Volume 42, Issue 11, pages 1945–1948, 15 November 2011
How to Cite
Livingstone, R. and Lombardi, J. R. (2011), Surface-enhanced Raman spectroscopy of 4-tert-butylpyridine on a silver electrode. J. Raman Spectrosc., 42: 1945–1948. doi: 10.1002/jrs.2962
- Issue published online: 10 NOV 2011
- Article first published online: 18 MAY 2011
- Manuscript Accepted: 6 MAR 2011
- Manuscript Received: 16 JUL 2010
- surface-enhanced Raman scattering (SERS);
- SERS 4-tert-butylpyridine on silver electrode
We report the observation of large surface-enhanced Raman scattering (SERS) (106) for 4-tert-butylpyridine molecules adsorbed on a silver electrode surface in an electrochemical cell with electrode potential set at − 0.5 V. A decrease in electrode potential to − 0.3 V was accompanied by a decrease in relative intensities of the vibrational modes. However, there were no changes in vibrational wavenumbers. Comparison of both normal solution Raman and SERS spectra shows very large enhancement of the intensities of a1, a2, and b2 modes at laser excitation of 488 nm. Enhancement of the non-totally symmetric modes indicates the presence of charge transfer as a contributor to the enhancement. Copyright © 2011 John Wiley & Sons, Ltd.