物理化学学报2008，Vol.24Issue(9)：1535-1539,5.
溶剂和分子结构对席夫碱分子在有机凝胶中的荧光增强和超分子手性的影响
Effect of Solvent and Molecular Structure on the Enhanced Fluorescence and Supramolecular Chirality of Schiff Bases in Organogels
摘要
Abstract
The structures and properties of some Schiff base compounds doped in organogels were investigated. It was found that although individual Schiff bases could not form organogels with organic solvents, they can gel by mixing with an organogelator, N,N'-bisoctadecyl-L-Boc-glutamic-diamide, which formed transparent organogels in dimethyl sulfoxide (DMSO) or toluene (Tol). The enhancement of doping Schiff bases fluorescence in the organogel was observed in comparison with that of the corresponding solution. Furthermore, in the DMSO organogel, the induced chirality was obtained from the doping Schiff base with long alkyl chain. In contrast, the Schiff bases without long alkyl chain could not form supramolecular chiral assemblies in organogel. It was suggested that through gel formation the chirality of the gelator could be transferred to the Schiff base through hydrophobic interaction among the long alkyl chains.关键词
有机凝胶/胶凝剂/荧光/手性/掺杂/席夫碱Key words
Organogel/Gelator/Fluorescence/Chirality/Doping/Schiffbase分类
化学化工引用本文复制引用
于微,李远刚,王天宇,刘鸣华,李占双..溶剂和分子结构对席夫碱分子在有机凝胶中的荧光增强和超分子手性的影响[J].物理化学学报,2008,24(9):1535-1539,5.基金项目
国家自然科学基金(20533050,50673095)涸家重点基础研究发展计划(2007CB808005)和中国科学院方向性创新项目资助 （20533050,50673095）
