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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 23, Number 11
BKCSDE 23(11)
November 20, 2002

Title	SERS of Dithiocarbamate Pesticides Adsorbed on Silver Surface; Thiram
Author	Jae Soo Kang, Seon Yeong Hwang, Chul Jae Lee, Mu Sang Lee
Keywords	Diamine, Epoxide, Halohydrin, Catalyst
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 δ(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.
Page	1604 - 1610
Full Text	PDF

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