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
收藏
页码：654 / 662
页数：9
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