Solid‐State Fluorescence Changes of 2‐(4‐Cyanophenyl)‐5‐[4‐(diethylamino)phenyl]‐3H‐imidazo[4,5‐a]naphthalene upon Inclusion of Organic Solvent Molecules
Solid‐State Fluorescence Changes of 2‐(4‐Cyanophenyl)‐5‐[4‐(diethylamino)phenyl]‐3H‐imidazo[4,5‐a]naphthalene upon Inclusion of Organic Solvent Molecules
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DOI：
10.1002/ejoc.200800832
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发表时间：
2008-12
影响因子：
2.8
通讯作者：
Y. Ooyama;S. Nagano;M. Okamura;Katsuhira Yoshida
中科院分区：
文献类型：
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作者：
Y. Ooyama;S. Nagano;M. Okamura;Katsuhira Yoshida
开发了新型咪唑并[4,5-a]萘型荧光笼形主体2-(4-氰基苯基)-5-[4-(二乙氨基)苯基]-3H-咪唑并[4,5-a]萘(2)，具有两种可能的咪唑环互变异构形式（A和B）。荧光团2的晶体表现出敏感的颜色变化和荧光增强行为，在包合各种有机溶剂分子后，发射最大值发生蓝移。通过X射线分析确定了2的无客体化合物和笼形化合物的晶体结构。在光谱数据和晶体结构的基础上，讨论了包合客体对包合物固态光物理性质的影响。（© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, German, 2008）
Novel imidazo[4,5-a]naphthalene-type fluorescent clathrate host 2-(4-cyanophenyl)-5-[4-(diethylamino)phenyl]-3H-imidazo[4,5-a]naphthalene (2), with two possible tautomeric forms (A and B) of the imidazole ring, was developed. The crystal of fluorophore 2 exhibits sensitive colour change and fluorescence enhancement behaviour with a blueshift in the emission maximum upon enclathration of various kinds of organic solvent molecules. The crystal structures of the guest-free and clathrate compounds of 2 were determined by X-ray analysis. On the basis of spectroscopic data and crystal structures, the effects of the enclathrated guest on the solid-state photophysical properties of the clathrate compounds are discussed.(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2008)