A nonpolymeric highly emissive ESIPT organogelator with neither dendritic structures nor long alkyl/alkoxy chains

A highly fluorescent excited state intramolecular proton transfer (ESIPT) small molecular organic gelator based on 2-(2[prime or minute]-hydroxy)phenylbenzoxazole, N,N[prime or minute]-bis(4-(benzo[d]oxazol-2-yl)-3-hydroxyphenyl)-5-tert-butyli s ophthalamide, is developed in the present study. The E...

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Bibliographic Details
Published in:Soft matter 2012-01, Vol.8 (3), p.757-764
Main Authors: Qian, Yan, Li, Shayu, Wang, Qian, Sheng, Xiaohai, Wu, Shikang, Wang, Shuangqing, Li, Juan, Yang, Guoqiang
Format: Article
Language:English
Subjects:
Bonding
Dendritic structure
Dimers
Elongation
Emission
Nanocomposites
Nanomaterials
Nanostructure
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Summary:A highly fluorescent excited state intramolecular proton transfer (ESIPT) small molecular organic gelator based on 2-(2[prime or minute]-hydroxy)phenylbenzoxazole, N,N[prime or minute]-bis(4-(benzo[d]oxazol-2-yl)-3-hydroxyphenyl)-5-tert-butyli s ophthalamide, is developed in the present study. The ESIPT organogelator does not have a dendritic structure or long alkyl chains, but has a specific bent molecular structure. The intermolecular H-bonding (N-HO[double bond, length as m-dash]C) between the J-aggregated dimers is the main driving force in the formation of the subsequent long-range one-dimensional assemblies in gel. The ESIPT gelator shows characteristics of aggregation-induced enhanced emission (AIEE). With its AIEE characteristics, ESIPT properties, simple and scalable fabrication of elongated nanobelts, as well as easy synthetic procedures, the versatile multifunctional fluorescent gelator has good prospects for future application in photoelectrical nanodevices.
ISSN:1744-683X
1744-6848
DOI:10.1039/C1SM06358H