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                            Library & Multimedia
 Surface-enhanced Raman spectroscopy of 4-tert-butylpyridine on a silver electrode
NCJ Number
              304166
Journal

*Journal of Raman Spectroscopy* Volume: 42 Issue: 11 Dated: 2011 Pages: 1945-1948
Author(s)
          Richard Livingstone;
                        John R. Lombardi
Date Published

2011
Length
              4 pages
Annotation
              This article reports 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.
Abstract
              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 showed 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. (publisher abstract modified)
      
  
          Additional Details
Grant Number(s)
        2006-DN-BX-K034


  
  
        
  Agencies
        NIJ-Sponsored


  
  
        
  Publication Type
        Research (Applied/Empirical)


  
  
        
  Award
        Development of Advanced Raman Spectroscopy Methods and Databases for the Evaluation of Trace Evidence and the Examination of Questioned Documents
    
  
  
Date Published: January 1, 2011
    
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