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Issue 11, 2009
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An enhanced fluorescence in a tunable face-to-face π⋯π stacking assembly directed by the H-bonding

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Abstract

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 π⋯π 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 π⋯π stacking assembly.

Graphical abstract: An enhanced fluorescence in a tunable face-to-face π⋯π stacking assembly directed by the H-bonding

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Publication details

The article was received on 26 May 2009, accepted on 30 Jun 2009 and first published on 24 Jul 2009


Article type: Communication
DOI: 10.1039/B910263A
Citation: CrystEngComm, 2009,11, 2268-2271

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

    X. Fu, Y. Yue, R. Guo, L. Li, W. Sun, C. Fang, C. Xu and C. Yan, CrystEngComm, 2009, 11, 2268
    DOI: 10.1039/B910263A

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