高等学校化学学报

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新型水溶性荧光标示剂吲哚方酸菁染料的合成及光谱性能

宋波1,2, 张茜2, 彭孝军1, 马文辉1,2, 王炳帅1, 付新梅1   

    1. 大连理工大学精细化工国家重点实验室, 大连 116012;
    2. 齐齐哈尔大学化学与化学工程学院, 齐齐哈尔 161006
  • 收稿日期:2007-08-26 修回日期:1900-01-01 出版日期:2008-05-10 发布日期:2008-05-10
  • 通讯作者: 彭孝军

Synthesis and Spectral Properties of New Water-soluble Fluorescent Label Squarylium Indocyanine Dyes

SONG Bo1,2, ZHANG Qian2, PENG Xiao-Jun1*, MA Wen-Hui1,2, WANG Bing-Shuai1, FU Xin-Mei1   

    1. State Key Laboratory of Fine Chemical, Dalian University of Technology, Dalian 116012, China;
    2. College of Chemistry and Chemical Engineering, Qiqihar University, Qiqihar 161006, China
  • Received:2007-08-26 Revised:1900-01-01 Online:2008-05-10 Published:2008-05-10
  • Contact: PENG Xiao-Jun

摘要: 用方酸与不同的N烷基取代吲哚啉季铵盐缩合制备了一系列对称的水溶性方酸菁染料. 通过核磁共振氢谱和质谱对合成的染料结构进行了表征, 研究了它们在不同溶剂中的吸收和发射光谱. 结果表明, 随着溶剂极性的增大, 染料的吸收光谱发生蓝移, 表现为负向溶剂化效应, 在极性溶剂中的荧光量子产率比在水中的大. 考察了N位取代基对染料水溶液光稳定性的影响, 结果表明在吲哚环N原子上引入较大的苄基有助于提高光稳定性, 且随着苄基上取代基吸电子能力的增强, 染料的光稳定性增强.

关键词: 方酸, 菁染料, 水溶性, 光稳定性

Abstract: Six water-soluble squarylium indocyanine dyes were synthesized and their structures were confirmed by 1H NMR and MS spectroscopy. The absorption and emission spectra of these dyes in water, methanol, ethanol, DMF, DMSO were studied. The spectra of these dyes exhibit a negative solvatochromism. The photo stability of these dyes in water was investigated as well. It is demonstrated that the electron-withdrawing group on N-position of cyanine dyes improves the photo stability as compared with the dyes with electron-donating group which decreases the photo stability obviously.

Key words: Squaric acid, Cyanine dye, Water-solubility, Photo stability

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