4-甲酰基4-苯乙烯基吡啶分子聚集行为的光谱研究

doi:10.7517/j.issn.1674-0475.1993.01.79

影像科学与光化学 ›› 1993, Vol. 11 ›› Issue (1): 79-84.DOI: 10.7517/j.issn.1674-0475.1993.01.79

4-甲酰基4-苯乙烯基吡啶分子聚集行为的光谱研究

常志英, 李妙贞, 聂俊, 王尔鑑

中国科学院感光化学研究所北京 100101

收稿日期:1992-01-07 修回日期:1992-06-23 出版日期:1993-02-20 发布日期:1993-02-20
通讯作者: 常志英

SPECTROSCOPIC STUDY ON MOLECULAR AGGREGATION BEHAVIOR OF 4’-FORMYL-4-STILBAZOLE

CHANG ZHI-YING, LI MIAO-ZHEN, NIE JMN, WANG ER-JIAN

lnsritute of Photographic Chemistry, Acadfmia Sinica, Beijing 100101, P. R. China

Received:1992-01-07 Revised:1992-06-23 Online:1993-02-20 Published:1993-02-20

摘要/Abstract

摘要： 苯乙烯基吡啶化合物,由于它可能在医学方面^[1]和光电子功能材料^[2]方面有实际应用前景,已引起人们的兴趣。苯乙烯吡啶化合物的光化学性质类似于二苯乙烯化合物,在光照下可以发生顺-反异构反应^[3]、加成反应和二聚反应^[4]等不同的光化学反应。

关键词: 4′-甲酰基4-苯乙烯基吡啶, 聚集态, 聚集体激发态

Abstract: Molecular aggregation of 4’-formyl-4-stilbazole compound (FSA) and its different sails were studied in the aqueous solution by electron spectrophotometry.A new absorption band at 360 nm resulted from the aggregation state of FSA was observed in differential spectra and disappeared quickly upon UV irradiation.The excimer fluorescence band of FSA was located at around 490 nm along with monomer emission band at 410 nm. The ratio of the intensity (I_ex,/I_m) raises obviously with increasing concentration of FSA. The aggregation of FSA occurs more intensively in the salt form-than in the free base form and varys with different counter ions.Addition of polymer PAA, PVP and PSA to the FSA system leads to more favorable for excimer formation due to the dramatic increase in a local concentration of FSA by intermo-lecular association with the polymer chain.

Key words: 4’-formyl-4-stilbazole, aggregation, excited aggregation state

常志英, 李妙贞, 聂俊, 王尔鑑. 4-甲酰基4-苯乙烯基吡啶分子聚集行为的光谱研究[J]. 影像科学与光化学, 1993, 11(1): 79-84.

CHANG ZHI-YING, LI MIAO-ZHEN, NIE JMN, WANG ER-JIAN. SPECTROSCOPIC STUDY ON MOLECULAR AGGREGATION BEHAVIOR OF 4’-FORMYL-4-STILBAZOLE[J]. Imaging Science and Photochemistry, 1993, 11(1): 79-84.

4-甲酰基4-苯乙烯基吡啶分子聚集行为的光谱研究

SPECTROSCOPIC STUDY ON MOLECULAR AGGREGATION BEHAVIOR OF 4’-FORMYL-4-STILBAZOLE

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