SERS and normal coordinate analysis of maleimide chemisorbed on colloidal silver

R. Aroca, M. Scraba, J. Mink

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Abstract

Surface enhanced Raman scattering (SERS) of maleimide adsorbed on colloidal silver, colloidal gold and Ag island films has been observed. A strong chemisorption of the maleimide molecule to the metal surface was evident from the observation of the corresponding metal-molecule stretching vibration. The normal coordinate analysis (NCA) of the metal complex was carried out using the force field of the isolated molecule and a AgN force constant. The NCA of the in-plane modes included two possible configurations of the metal-adsorbate complex, allowing an interpretation of SERS spectra obtained with fresh and aged colloids and an approximate description of the surface sensitive vibrational fundamentals.

Original languageEnglish
Pages (from-to)263-269
Number of pages7
JournalSpectrochimica Acta Part A: Molecular Spectroscopy
Volume47
Issue number2
DOIs
Publication statusPublished - 1991

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ASJC Scopus subject areas

  • Engineering(all)

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