| 两种卟啉化合物在Ag溶胶表面的紫外-可见吸收光谱和表面增强拉曼散射光谱研究 |
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| 引用本文： | 王传义,刘春艳,阎晓斌,何建军,张曼华,沈涛.两种卟啉化合物在Ag溶胶表面的紫外-可见吸收光谱和表面增强拉曼散射光谱研究[J].影像科学与光化学,1996,14(1):54-58. |
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| 作者姓名： | 王传义 刘春艳 阎晓斌 何建军 张曼华 沈涛 |
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| 作者单位： | 中国科学院感光化学研究, 北京100101 |
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| 摘 要： | 表面增强拉曼散射(SERS)自1974年被Fleischmann等1]发现以来,日益受到人们的重视.通过SERS谱图分析,可以获得物质结构及其与基体作用的信息.由于SERS可使拉曼信号增强105~106倍2],并且在某些情况下银胶还能使表面吸附质的荧光猝灭3,4], SERS常用来检测一些普通拉曼光谱难以检测的样品和考察界面络合物的形成.
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| 关 键 词： | 卟啉 Ag溶胶 表面增强拉曼光谱 紫外吸收光谱 |
| 收稿时间： | 1995-06-13 |
ABSORPTION SPECTRA AND SURFACE ENHANCED RAMAN SCATTERING SPECTRA OF PORPHYRINS ADSORBED ON Ag SOLS |
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| WANG Chuanyi,LIU Chunyan,YAN Xiaobin,HE Jianjun,ZHANG Manhua,SHEN Tao.ABSORPTION SPECTRA AND SURFACE ENHANCED RAMAN SCATTERING SPECTRA OF PORPHYRINS ADSORBED ON Ag SOLS[J].Imaging Science and Photochemistry,1996,14(1):54-58. |
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| Authors: | WANG Chuanyi LIU Chunyan YAN Xiaobin HE Jianjun ZHANG Manhua SHEN Tao |
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| Institution: | Institute of Photographic Chemistry, The Chinese Academy of Sciences, Beijing 100101, P. R. China |
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| Abstract: | The behaviof of two kinds of porphyrin derivatives,meso-5,10,15,20-tetra(4’-hydroxyphenyl)-porphyrin(T(4-HP))and meso-5-(4’-hydroxyphenyl)-10,15,20-triphenylporphyrin(HPTPP),absorbed on Ag sols was investigated by UV-vis spectra and surfcae enhanced Raman scattering spectra.There was obvious SERS effect when T(4-HP)P and HPTPP were adsorbed on the particle surface of the silver sol,meanwhile,a new peak located around 460 nm in absorption spectra was observed in our experiments.It was found that the two adsorbed porphyrin derivatives undergoing partial metal incorporation to form new compounds called"sittin-atop"(SAT)complexes.In addition,the differences in spectra of UV-vis absorption and SERS between T(4-HP)P and HPTPP were also discussed. |
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| Keywords: | porphyrin silver sol surface enhanced Raman scattering UV-vis absorption spectra |
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