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| 硒杂环-金属离子在乙醇溶液中的发光 | |
| 引用本文： | 郑文杰,曾鑫华,郭宝江,杨芳,白燕,欧阳健明. 硒杂环-金属离子在乙醇溶液中的发光[J]. 光谱学与光谱分析, 2004, 24(1): 102-105 |
| 作者姓名： | 郑文杰 曾鑫华 郭宝江 杨芳 白燕 欧阳健明 |
| 作者单位： | 1. 暨南大学化学系,广东,广州,510632;华南师范大学生物技术研究所,广东,广州,510631 2. 暨南大学化学系,广东,广州,510632 3. 华南师范大学生物技术研究所,广东,广州,510631 |
| 基金项目： | 国家自然科学基金 (2 0 2 71 0 2 )，广东省自然科学基金 (0 1 0 369)资助项目 |
| 摘 要： | 研究了不同分子结构的硒杂环化合物 金属离子在乙醇溶液中的发光 ,硒杂环均为苤硒脑类化合物(Piazselenoles,简称Pis) :Piazselenole(PS) ;4 ,5 benzopiazselenole(BP) ;5 methyl piazselenole(MP) ;4 ,4 ' dipi azselenole(DP)。结果表明 :Pis的Em随分子共轭体系增大或共轭效应增强而出现有规律地红移 ;Sn(Ⅳ )对Pis的发光有明显的增敏作用 :使DP的Em蓝移 ;对MP荧光减弱 ,对BP和DP均有明显的荧光增强作用 ,对常温下不发光的PS ,在Sn(Ⅳ ) PS乙醇溶液有较强的特征荧光 (Ex =35 5nm ,Em =4 2 6nm) ;此外 ,Cr(Ⅲ ) ,Cd(Ⅱ ) ,Cu(Ⅱ ) ,Sb(Ⅲ )和Sn(Ⅳ )均使BP荧光增强 ,Fe(Ⅲ )和Fe(Ⅱ )浓度较大时使BP荧光减弱 ,Zn(Ⅱ )却几乎没有影响 |
| 关 键 词： | 硒杂环化合物 金属离子 荧光 苤硒脑 |
| 文章编号： | 1000-0593(2004)01-0102-04 |
| 修稿时间： | 2002-04-02 |
The Luminescence Characters of Heterocyclic Selenium Compounds and Metallic Ion in Ethanol Solutions |
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| ZHENG Wen-jie ,,ZENG Xin-hua ,GUO Bao-jiang ,YANG Fang ,BAI Yan ,OUYANG Jian-ming . Dept. of Chemistry,Jinan University,Guangzhou ,China . Biotech. Research Institute,South China Normal University,Guangzhou ,China. The Luminescence Characters of Heterocyclic Selenium Compounds and Metallic Ion in Ethanol Solutions[J]. Spectroscopy and Spectral Analysis, 2004, 24(1): 102-105 | |
| Authors: | ZHENG Wen-jie ZENG Xin-hua GUO Bao-jiang YANG Fang BAI Yan OUYANG Jian-ming . Dept. of Chemistry Jinan University Guangzhou China . Biotech. Research Institute South China Normal University Guangzhou China |
| Affiliation: | Dept of Chemistry, Jinan University, Guangzhou, China. |
| Abstract: | We investigated the luminescence characters of the ethanol solutions containing metallic ions and heterocyclic selenium compounds with different molecular structures in this paper. Heterocyclic selenium compounds included piazselenole (PS), 4,5-benzopiazselenole (BP), 5-methyl-piazselenole (MP), and 4,4'-dipiazselenole (DP). The results were as follows: (1) When the conjugative effect of piazselenoles increased, the emission spectrum shifted to lower frequencies; (2) Sn(IV) made the DP emission wavelength shorten. Sn(IV) reduced the fluorescence of MP, but caused fluorescence enhancement for BP and DP. The fluorescence of PS couldn't be detected at normal temperature, but strong fluorescence of PS was determined when the ratio of nSn(IV)/n(PS) was 0.5; (3) Sn(IV), Cr(III), Cd(II), Cu(II) and Sb(III) caused fluorescence enhancement for BP. The fluorescence of BP was reduced when increasing the concentration of Fe(III) and Fe(II). Zn(II) had little effect on the fluorescence of BP. |
| Keywords: | Heterocyclic selenium compounds Metallic ion Fluorescence Piazselenole |
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