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http://dx.doi.org/10.5012/bkcs.2002.23.11.1604

SERS of Dithiocarbamate Pesticides Adsorbed on Silver Surface; Thiram  

Kang, Jae-Soo
Hwang, Seon-Yeong
Lee, Chul-Jae
Lee, Mu-Sang
Publication Information
Bulletin of the Korean Chemical Society / v.23, no.11, 2002 , pp. 1604-1610 More about this Journal
Abstract
In the present work, we studied thiram on silver surface by SERS. Investigations of disulfides with SERS revealed that the molecules undergo a surface reaction on silver, namely easy cleavage of the S-S bond. We believe that the two S atoms of resonance formed from the thiram may be chemisorbed strongly on Ag sol. This resonance form adheres perpendicularly to the Ag surface via the two S atoms, since the ${\delta}(CH3)$ and n (CN) mode perpendicular to the surface showed strong enhancement. The important roles of halide anion adsorption have been discussed and the pH effects of thiram on Ag sol in acidic, neutral, and alkaline conditions were examined.
Keywords
Surface-enhanced Raman scattering; ThiramlSilver sol;
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