Investigation on Synthesis and Photostabilities of Novel Asymmetric Benzothiazole Trimethine Cyanine Dyes

被引：6

作者：

Chen, Xiuying ^{[1
]}

Guo, Lin ^{[1
]}

Zheng, Changge ^{[1
]}

Gao, Haiyan ^{[1
]}

Wang, Haijun ^{[1
]}

Zhang, Dan ^{[1
]}

机构：

[1] Jiangnan Univ, Key Lab Food Colloids & Biotechnol, Minist Educ, Sch Chem & Mat Engn, Wuxi 214122, Peoples R China

来源：

CHINESE JOURNAL OF ORGANIC CHEMISTRY | 2012年 / 32卷 / 08期

基金：

中国国家自然科学基金;

关键词：

benzothiazole cyanine dye; photodegradation; cyclic voltammetry curves; fluorescence; oxidizing potential; photostability; THIAZOLE ORANGE-DYE; ELECTRON INJECTION; BIS-INTERCALATION; ENERGY-TRANSFER; QUANTUM YIELDS; FLUORESCENCE; SPECTRA; BINDING;

D O I：

10.6023/cjoc1201091

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

Novel asymmetric trimethine benzothiazole cyanine dyes with different N-substituents were synthesized and characterized by MS and H-1 NMR techniques. The maximums of absorption and emission spectra of the dyes in ethanol were in the range of 628 similar to 631 and 662 similar to 666 nm, respectively. The dyes were almost non-fluorescent in solvents, which can reduce the background interference greatly. The photodegradation experiment showed that the octyl group on quinoline ring and benzyl group on benzothiazole ring improved the photostabilites of the dyes obviously. The rate constants of photoreaction of the dyes 8a similar to 8d were 6.38 X 10(-4), 12.5 X 10(-4), 2.68 X 10(-4) and 6.30 X 10(-4) mol.min(-1), respectively. Oxidation potentials were determined by cyclic voltammetry.

引用

页码：1445 / 1449

页数：5

共 33 条

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