Issue 11, 2009
From the journal:

CrystEngComm

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

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

* Corresponding authors

a School of Chemical Biology and Pharmaceutical Sciences, Capital Medical University, Beijing, China
E-mail: cjfang@ccmu.edu.cn
Fax: +86 10 8391 1533
Tel: +86 10 8391 1523

b Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Rare Earth Materials Chemistry and Applications & PKU-HKU Joint Laboratory on Rare Earth Materials and Bioinorganic Chemistry, Peking University, Beijing, China
E-mail: yan@pku.edu.cn
Fax: +86 10 6275 4179
Tel: +86 10 6275 4179

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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Article information

DOI
https://doi.org/10.1039/B910263A
Article type
Communication
Submitted
26 May 2009
Accepted
30 Jun 2009
First published
24 Jul 2009

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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