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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 16, Number 2
BKCSDE 16(2)
February 20, 1995 

Adsorption of 2-Cyanonaphthalene on Silver Sol Investigated by Raman Spectroscopy
Sung Hyun Park, Eunah Lee, Du-Jeon Jang*, Myung Soo Kim*, Kwan Kim*
Surface-enhanced Raman (SER) scattering of 2-cyanonaphthalene (2-CN) has been investigated in silver sol. Addition of halide ions was needed to obtain authentic SER spectra of the molecule. The SER spectra thus obtained exhibited a slight but noticeable dependence on the kind of halide ions used. This halide-dependent spectral variation was attributed to the orientational change of molecule on silver sol surface. A possible mechanism for such an orientational change is proposed in terms of the competitive adsorption of 2-CN with halide ions on the so-called halide-specific sites.
130 - 134
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