| 新型吡喃鎓方酸菁染料溶剂效应、聚集行为研究 |
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| 引用本文： | 陈建国,黎源,黄德音. 新型吡喃鎓方酸菁染料溶剂效应、聚集行为研究[J]. 影像科学与光化学, 2000, 18(4): 308-315. DOI: 10.7517/j.issn.1674-0475.2000.04.308 |
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| 作者姓名： | 陈建国 黎源 黄德音 |
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| 作者单位： | 上海交通大学化学化工学院, 上海200240 |
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| 摘 要： | 本文研究了五个吡喃鎓方酸菁染料的溶剂效应,发现最大吸收峰波数υ与函数f(n,ε)存在较好的线性关系,而Bayliss函数项(n2-1)/(2n2+1)决定了吸收光谱的位移变化Δυ,同时还分析了氢键相互作用对理论函数模型的误差.根据染料的聚集动力学证实了染料在正丙醇/水(4:21,体积比)体系中确有二聚体的产生,并发现了两组不同的聚集特性.此外,使用APCIMS质谱技术证实Dye3二氯甲烷浓溶液中也产生了二聚体.
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| 关 键 词： | 菁染料 方酸菁染料 溶剂效应 二聚体 |
| 收稿时间： | 2000-05-20 |
SOLVENT EFFECTS AND AGGREGATION ACTION OF NOVELPYRYLIUM-SQUARYLIUM CYANINE DYES |
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| CHEN Jian-guo,LI Yuan,HUANG De-yin. SOLVENT EFFECTS AND AGGREGATION ACTION OF NOVELPYRYLIUM-SQUARYLIUM CYANINE DYES[J]. Imaging Science and Photochemistry, 2000, 18(4): 308-315. DOI: 10.7517/j.issn.1674-0475.2000.04.308 |
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| Authors: | CHEN Jian-guo LI Yuan HUANG De-yin |
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| Affiliation: | School of Chemistry and Chemical Engineering, Shanghai Jiaotong University, Shanghai 200240, P. R. China |
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| Abstract: | Solvent effects of five novel pyrylium squarylium cyanine dyes in thirteen different solvents were studied. It was found that the positive solvatochromism of the dyes was dependent on the function f(n,ε) with good linearity. The hydrogen bond effect of the solvents was also discussed. Dimers of the dyes in n propanol/water system were investigated and two different aggregation properties were found. Dimer was also detected in dichloromethane with the aid of APCI Mass spectra. |
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| Keywords: | cyanine dye squarylium dye solvent effect dimer |
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