Exploring the location and orientation of 4-(N,N-dimethylamino) cinnamaldehyde in anionic, cationic and non-ionic micelles

被引：25

作者：

Panja, S ^{[1
]}

Chowdlury, P ^{[1
]}

Chakravorti, S ^{[1
]}

机构：

[1] Indian Assoc Cultivat Sci, Dept Spect, Kolkata 700032, W Bengal, India

来源：

CHEMICAL PHYSICS LETTERS | 2003年 / 368卷 / 5-6期

关键词：

D O I：

10.1016/S0009-2614(02)01960-7

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

This Letter reports probing of non-ionic, anionic and cationic micelles utilizing different dual emission properties of 4-(N,N-dimethylamino) cinnamaldehyde. Twisted intramolecular charge transfer (TICT) band is more enhanced and blue shifted in non-ionic micelle than those are in ionic micelles. In non-ionic micelle, the molecule enters in the core region whereas, in ionic micelles, it is anchored in the interfacial region with different orientations. Micellar-water interface electric field in ionic micelles was found to have profound effect on TICT decay time. Interestingly, inorganic salt-counterion binding helps the acceptor moiety to enter into the core region in anionic micelle. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：654 / 662

页数：9

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