两个新的苯并噻唑衍生物的合成与光物理性质

doi:10.7517/j.issn.1674-0475.2007.02.81

影像科学与光化学 ›› 2007, Vol. 25 ›› Issue (2): 81-88.DOI: 10.7517/j.issn.1674-0475.2007.02.81

• 研究论文 • 下一篇

两个新的苯并噻唑衍生物的合成与光物理性质

曹凤霞, 曹笃霞, 李国忠, 田颖

济南大学, 材料科学与工程学院, 山东, 济南, 250022

收稿日期:2006-09-25 修回日期:2006-11-22 出版日期:2007-03-23 发布日期:2007-03-23
通讯作者: 李国忠,教授.
基金资助:
国家863计划项目(2003AA333070);济南大学博士基金项目(B0415)

Synthesis and Photophysical Properties of Two Novel Benzothiazole-Based Derivatives

CAO Feng-xia, CAO Du-xia, LI Guo-zhong, TIAN Ying

School of Material Science and Engineering, University of Jinan, Jinan 250022, Shandong, P. R. China

Received:2006-09-25 Revised:2006-11-22 Online:2007-03-23 Published:2007-03-23

摘要/Abstract

摘要： 以苯并噻唑、苯乙酰基和吡啶阳离子为电子受体,二乙烯基苯为共轭桥,合成了两个新的A-π-A′型苯并噻唑衍生物:4-(2-苯并噻唑)-乙烯基查尔酮(1)和4-{4-[2-(苯并噻唑)乙烯基]苯乙烯基}-N-甲基吡啶碘盐(2).研究了它们在溶液和固体基质中的光物理性质.研究发现:染料2由于具有较强的极性和较好的平面性,从而具有较长的吸收、发射峰和较强的荧光发射.有机染料在聚甲基丙烯酸甲酯/溶胶-凝胶复合玻璃中的发光行为与聚甲基丙烯酸甲酯和溶胶-凝胶玻璃二者的基质性质有关,同时由于固体基质中分子发生聚集的可能性降低,荧光强度相对于同浓度溶液增强,稳定性提高.

关键词: 苯并噻唑衍生物, 光物理性质, 复合玻璃

Abstract: Two novel A-π-A′ type benzothiazole-based derivatives with benzothiazolyl,phenyl-acetyl or pyridine cation groups as π electron acceptor,diethenylphenyl as π conjugated bridge: 4-(2-benzothiazolyl)ethenylchalcone(1) and 4-{4-[2-(benzothiazole-2-yl)ethenyl]styryl}-N-methylpyridinium iodide(2) were synthesized.The photophysical properties of the dyes in different solvents and solid matrices are researched.The results reveal that 2 has longer absorption,emission maximum and stronger fluorescence emission than 1 because of its stronger polarity and better planarity.Besides,organic dyes in poly methyl methacrylate/sol-gel composite glass experience an environment,which is the integration of pure PMMA and pure sol-gel glass.The results also reveal that the fluorescence intensity of the organic dyes in the solid matrices increase relative to that in solvents with same concentration because of little aggregation of molecules in solvent.The dyes have higher stability in composite glass.

Key words: benzothiazole-based derivatives, photophysical properties, composite glass

中图分类号:

TQ171

曹凤霞, 曹笃霞, 李国忠, 田颖. 两个新的苯并噻唑衍生物的合成与光物理性质[J]. 影像科学与光化学, 2007, 25(2): 81-88.

CAO Feng-xia, CAO Du-xia, LI Guo-zhong, TIAN Ying. Synthesis and Photophysical Properties of Two Novel Benzothiazole-Based Derivatives[J]. Imaging Science and Photochemistry, 2007, 25(2): 81-88.

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两个新的苯并噻唑衍生物的合成与光物理性质

Synthesis and Photophysical Properties of Two Novel Benzothiazole-Based Derivatives

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