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| 结晶紫与卤素或卤酸根离子共吸附的近红外表面增强喇曼散射 | |
| 引用本文： | 叶晓岚,邓文杰,梁二军,W.Kiefer. 结晶紫与卤素或卤酸根离子共吸附的近红外表面增强喇曼散射[J]. 高等学校化学学报, 1998, 19(5): 774-778 |
| 作者姓名： | 叶晓岚 邓文杰 梁二军 W.Kiefer |
| 作者单位： | 1. 杭州大学化学系,杭州,310028 2. 杭州师范学院化学系,杭州,310012 3. 郑州大学河南省激光应用技术重点实验室,郑州,450052 4. Würzburg大学物理化学研究所,Würzburg,德国 |
| 基金项目： | 国家教育委员会博士后基金,德国科学基金 |
| 摘 要： | 采用近红外激光（１０６４ｎｍ）激发和扫描式双光栅单色仪研究了卤素、卤酸根离子及吡啶对结晶紫近红外表面增强喇曼散射光谱（ＮＩＲ－ＳＥＲＳ）的影响．揭示了这些离子（或分子）与结晶紫及银表面的相互作用．Ｃｌ－、Ｂｒ－、Ｉ－、ＢｒＯ－３离子及吡啶均能引起结晶紫ＮＩＲ－ＳＥＲＳ的明显增强，而ＣｌＯ－３和ＩＯ－３离子则不能．观察到ＮＩＲ－ＳＥＲＳ中化学增强的直接证据，并估算了化学增强因子．Ｃｌ－、Ｂｒ－、Ｉ－和ＢｒＯ－３离子引起结晶紫ＮＩＲ－ＳＥＲＳ的化学增强因子分别约为４９、７７、１５和３６． |
| 关 键 词： | 结晶紫 卤素离子 NIR SERS 卤酸根离子 增强 |
NIR-Surface-enhanced Raman Scattering of Crystal Violet Coadsorbed with Halide and Halate Ions |
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| YE Xiao-Lan,DENG Wen-Jie,LIANG Er-Jun,W.Kiefer. NIR-Surface-enhanced Raman Scattering of Crystal Violet Coadsorbed with Halide and Halate Ions[J]. Chemical Research In Chinese Universities, 1998, 19(5): 774-778 | |
| Authors: | YE Xiao-Lan DENG Wen-Jie LIANG Er-Jun W.Kiefer |
| Abstract: | The influence of halide and halate ions as well as pyridine on near infrared surface enhanced Raman scattering(NIR SERS) of crystal violet was studied with NIR excitation and a scanning double grating spectrometer. The interaction of crystal violet with these ions(or the molecule) and the interaction of crystal violet with colloidal silver surface have been revealed. Cl -, Br -, I - and BrO - 3 ions as well as pyridine give rise to a large enhancement of the Raman modes of crystal violet while no Raman bands of it could be observed in the presence of CIO - 3 and IO - 3 ions. The chemical enhancement in the NIR SERS was found and its enhancement factors caused by Cl -, Br -, I - and BrO - 3 ions were estimated to be about 49, 77, 15 and 36, respectively. |
| Keywords: | Crystal violet Halide ion Halate ion NIR SERS |
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