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                            Library & Multimedia
 Raman and Surface Enhanced Raman Scattering of 3-Hydroxyflavone
NCJ Number
              255344
Journal

*Journal of Physical Chemistry C* Volume: 111 Dated: 2007 Pages: 3044-3052
Author(s)
          Minfa Wang;
                        Tatyana Teslova;
                        Fen Xu;
                        John R. Lombardi;
                        Ronald L. Birke;
                        Marco Leona
Date Published

2007
Length
              9 pages
Annotation
              This article reports on a project that measured normal Raman (NR) and surface enhanced Raman scattering (SERS) spectra of 3-hydroxyflavone (3-HF).
Abstract
              The SERS spectra were obtained both on an electrode surface and on Ag colloid. Spectral bands were assigned using DFT calculations for the NR, SERS, and FTIR spectra. The IR, normal Raman, and SERS results were compared and in conjunction with a DFT calculation were used to interpret the low-frequency carbonyl stretching vibration in 3-HF. The experimental results supported the DFT geometry calculations, which show that an adatom site at the vertex of Ag20 cluster binding with the 3-HF molecular plane tilted at an angle of about 53° to the surface is a low-energy structure. This is consistent with the enhancement of in-plane vibrational modes. (publisher abstract modified)
      
  
          Additional Details
Grant Number(s)
        2006-DN-BX-K034


  
  
        
  Agencies
        NIJ-Sponsored


  
  
        
  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, 2007
    
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                Cluster analysis
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