苝
材料科学
超分子化学
荧光
堆积
透射电子显微镜
环糊精
光诱导电子转移
荧光光谱法
水溶液
光化学
结晶学
纳米技术
化学
物理化学
有机化学
光学
晶体结构
物理
作者
Yu Liu,Ke-Rang Wang,Dong‐Sheng Guo,Bang‐Ping Jiang
标识
DOI:10.1002/adfm.200900221
摘要
Abstract A nanoscopic supramolecular aggregate is constructed from perylene bisimide‐bridged bis‐(permethyl‐ β ‐cyclodextrins) 1 via π–π stacking interactions. Its self‐assembly behavior in organic and aqueous solutions is investigated by UV–Vis, fluorescence, and 1 H NMR spectroscopy. Transmission electron microscopy and scanning electron microscopy images show the 1D nanorod aggregation of 1 , which is birefringent under crossed polarizer conditions and strongly fluorescent as depicted in the fluorescence microscopy image. X‐ray powder diffraction measurements indicate that 1 forms a well‐ordered crystalline arrangement with a π–π stacking distance of 4.02 Å. Furthermore, the solid‐state fluorescence sensing is explored by utilizing the poly(vinylidene fluoride) membrane‐embedded 1 , giving that 1 , as a novel vapor detecting material, can probe several kinds of volatile organic compounds and, especially, exhibits high sensitivity to organic amines.
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