ADSORPTION AND REACTION OF 4-METHOXYCINNAMONITRILE ON A SILVER SURFACE - A SURFACE-ENHANCED RAMAN-SPECTROSCOPIC STUDY

被引：9

作者：

CHUN, HA ^{[1
]}

YI, SS ^{[1
]}

KIM, MS ^{[1
]}

KIM, K ^{[1
]}

机构：

[1] SEOUL NATL UNIV,COLL NAT SCI,DEPT CHEM,SEOUL 151742,SOUTH KOREA

来源：

JOURNAL OF RAMAN SPECTROSCOPY | 1990年 / 21卷 / 11期

关键词：

D O I：

10.1002/jrs.1250211107

中图分类号：

O433 [光谱学];

学科分类号：

0703 ; 070302 ;

摘要：

Surface‐enhanced Raman scattering of cis‐ and trans‐4‐methoxycinnamonitrile (4MCN) was investigated in aqueous silver sols. Both isomers adsorbed on the silver surface via the cyano group. The adsorption strength for the cis isomer appeared to be greater than that for the trans isomer. However, cis‐4MCN, adsorbed selectively on the silver surface, was readily converted to the trans isomer via a laser‐assisted surface reaction. The exact mechanism of the photoisomerization is not yet completely understood. It is thought that the reaction occurs via the absorption of a single visible photon which is in resonance with the low‐energy tail of the broadened absorption band of the adsorbed cis isomer. Copyright © 1990 John Wiley & Sons, Ltd.

引用

页码：743 / 749

页数：7

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