ISSN:
0377-0486
Keywords:
Chemistry
;
Analytical Chemistry and Spectroscopy
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
,
Physics
Notes:
The trisodium salt of 2-(4-sulphophenylazo)-1,8-dihydroxynaphthalene-3,6-disulphonic acid (SPADNS) was studied by Raman and surface-enhanced Raman spectroscopy (SERS) techniques. The Raman spectra of SPADNS powder and aqueous solution were investigated and an assignment of the Raman bands was made taking into account its infrared absorpiton spectrum. SPADNS tatomers, o-hydroxyazo and o-quinone hydrazone, are also discussed. Although the assignment is still preliminary owing to the complex structure of the SPADNS molecule, it provides useful information for SERS investigations of SPADNS in aqueous silver sol and on silve film. The results of SERS are compared with those of visible absorption spectra and x-ray photoelectron spectra (XPS) and the adsorption configuration of the SPADNS molecule on a silver surface is considered.
Additional Material:
5 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/jrs.1250240308
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