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Applied Spectroscopy

Applied Spectroscopy


  • Vol. 54, Iss. 3 — Mar. 1, 2000
  • pp: 378–383

Surface-Enhanced Raman Scattering of Aromatic Sulfides in Aqueous Gold Sol

Sang Woo Joo, Sang Woo Han, and Kwan Kim

Applied Spectroscopy, Vol. 54, Issue 3, pp. 378-383 (2000)

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A surface-enhanced Raman scattering (SERS) study has been performed for benzyl phenyl sulfide (BPS) and dibenzyl sulfide (DBS) in aqueous gold sol to examine the feasibility of the occurrence of surface-induced photoreactions of aromatic sulfides. Although BPS and DBS were reported to be decomposed into mercaptides on the silver surface by the 514.5 nm radiation, the molecules were found not to undergo such reactions on the gold surface. Such a difference in behavior was speculated to be associated with the different adsorption strength of BPS and DBS on gold and silver. The absorption bands of BPS and DBS seemed to be substantially broadened on silver so that the low-energy tails of the broadened absorption bands were in resonance with the 514.5 nm radiation, while the electronic absorption bands were not broadened sufficiently on the gold surface to absorb visible radiation. Index Headings: SERS; Benzyl phenyl sulfide; Dibenzyl sulfide; Gold sol; Photoreaction.

Sang Woo Joo, Sang Woo Han, and Kwan Kim, "Surface-Enhanced Raman Scattering of Aromatic Sulfides in Aqueous Gold Sol," Appl. Spectrosc. 54, 378-383 (2000)

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