An enhanced fluorescence in a tunable face-to-face ππ stacking assembly directed by the H-bonding

Xiao-Fei Fu; Yan-Feng Yue; Rui Guo; Le-Le Li; Wei Sun; Chen-Jie Fang; Chun-Hu Xu; Chun-Hua Yan

doi:10.1039/B910263A

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CrystEngComm

Issue 11, 2009

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An enhanced fluorescence in a tunable face-to-face ππ stacking assembly directed by the H-bonding

Xiao-Fei Fu , Yan-Feng Yue , Rui Guo , Le-Le Li , Wei Sun , Chen-Jie Fang , Chun-Hu Xu and Chun-Hua Yan

CrystEngComm, 2009, 11, 2268-2271

DOI: 10.1039/B910263A
Received 26 May 2009, Accepted 30 Jun 2009
First published on the web 24 Jul 2009
This article is part of the collection: Peking University Centenary Celebrations

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Abstract
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Compounds
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A simple anthryl derivative 1-((anthracen-10-yl)methylene)-4-ethylthiosemicarbazide (ANS) shows a methanol-tunable solid state fluorescence enhancement based on different molecular packing structure; the emission is stronger in crystal 2 than that in crystal 1 under the same condition. This is mainly due to the formation of face-to-face ππ stacking assembly in crystal 2 which is directed and enhanced by intermolecular H-bonding interactions. The observation of fluorescence decay corroborates the formation of an emissive excimer in the ππ stacking assembly.

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Articles By

Xiao-Fei Fu
Yan-Feng Yue
Rui Guo
Le-Le Li
Wei Sun
Chen-Jie Fang
Chun-Hu Xu
Chun-Hua Yan

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An enhanced fluorescence in a tunable face-to-face ππ stacking assembly directed by the H-bonding

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