| pH值对2-(2-吡啶基)咪唑荧光光谱的影响研究 |
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| 引用本文： | 顾仁敖,沈晓英,刘国坤,田中群.pH值对2-(2-吡啶基)咪唑荧光光谱的影响研究[J].高等学校化学学报,2005,26(8):1537-1540. |
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| 作者姓名： | 顾仁敖 沈晓英 刘国坤 田中群 |
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| 作者单位： | 东北师范大学化学学院功能材料化学研究所;东北师范大学化学学院分析测试中心,长春,130024 |
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| 摘 要： | 合成了2-(2-吡啶基)咪唑,并通过稳态荧光光谱研究了它在溶液中的光物理行为及溶液酸碱度的影响.发现2-(2-吡啶基)咪唑化合物存在分子内光诱导电子转移反应(PET),并且这一过程强烈地依赖于溶液的pH值,但是氮原子的质子化会影响PET过程.
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| 关 键 词： | 2-(2-吡啶基)咪唑 荧光光谱 分子内光诱导电子转移 pH效应 |
| 文章编号： | 0251-0790（2005）08-1537-04 |
| 收稿时间： | 06 24 2004 12:00AM |
| 修稿时间： | 2004-06-24 |
Studies on Surface-enhanced Raman Spectroscopy on Bare Zn Electrode |
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| GU Ren-ao,SHEN Xiao-Ying,LIU Guo-kun,TIAN Zhong-Qun.Studies on Surface-enhanced Raman Spectroscopy on Bare Zn Electrode[J].Chemical Research In Chinese Universities,2005,26(8):1537-1540. |
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| Authors: | GU Ren-ao SHEN Xiao-Ying LIU Guo-kun TIAN Zhong-Qun |
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| Institution: | 1. Institute of Functional Material Chemistry,
2. Center of Analysis &; Testing, Faculty of Chemistry, Northeast Normal University, Changchun 130024, China |
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| Abstract: | Various roughening procedures for the bare Zn electrode such as chemical etching, electrochemical deposition and the electrochemical oxidation-reduction method were tried to obtain surface-enhanced Raman spectroscopy(SERS) from it and electrochemical oxidation-reduction method was proved effectively. Two electrochemical oxidation-reduction methods were described. One is linear sweep oxidation-reduction cycles(ORC) and the other is a double-step ORC. By using confocal Raman microscopy, surface enhanced Raman spectra of pyridine adsorbed on the bare roughened Zn electrodes were observed for the first time, when reduction potential was controlled at -1.6 V and oxidation potential at -0.7 V. |
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| Keywords: | Zn electrode Surface-enhanced Raman spectroscopy(SERS) Pyridine Roughening method |
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