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|title: ||Surface adsorption of 4,4 '-dithiodipyridine and 2,2 '-dithiodipyridine on silver nanoparticles|
|authors: ||Nogueira, Helena I. S.|
Cruz, Sandra M. G.
Soares-Santos, Paula C. R.
Ribeiro-Claro, Paulo J. A.
|keywords: ||surface-enhanced Raman scattering|
|issue date: ||2003|
|publisher: ||John Wiley and Sons|
|abstract: ||A detailed vibrational study on the isomers 2,2 -dithiodipyridine and 4,4 -dithiodipyridine was carried
out. These organic ligands are of great interest as possible linkers in the fabrication of nanostructures, and
therefore a study on the adsorption modes of both ligands at silver surfaces is presented. Orientational
information on the 2,2 -dithiodipyridine and 4,4 -dithiodipyridine molecules adsorbed on silver colloids
was collected based on the SERS spectra and supported by ab initio calculations. There is evidence that
both organic ligands adsorb on the silver surface through the sulfur atoms, with the aromatic rings in a
|source: ||Journal of Raman Spectroscopy|
|appears in collections||DQ - Artigos|
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