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尼罗红(NR)分子具有大的芳香环和基态时可与水分子形成氢键的吸电子基,它对增溶在表面活性剂胶束栅栏层的环境尤其敏感,在十二烷基三甲基溴化铵(C12TABr)胶束水溶液中表现为双重荧光,最大发射波长分别位于578和630nm.十二烷基硫酸钠(SDS)胶束的反离子解离度大于C12TABr胶束,这不仅增大了NR周边环境的极性,也增多了溶剂化水,导致与NR氢键作用增强,荧光强度低于C12TABr,但有效促进了分子内扭转电荷转移(TICT)激发态形成,其布居甚至可达到98%以上,表观上仅出现了在634nm的单重荧光峰.NR对环境的敏感特性很好地反映了Gemini表面活性剂初始形成胶束的残缺结构信息,是检测这类具有强烈相互作用两亲分子聚集行为的良好探针.
Nile red (NR) molecules with a large aromatic ring and the ground state can form water-hydrogen bond with the electron-withdrawing group, which is solubilized in the surfactant micelle fence environment is particularly sensitive to the dodecyltri Methyl ammonium bromide (C12TABr) micelles aqueous solution showed double fluorescence, the maximum emission wavelength at 578 and 630nm. Sodium dodecyl sulfate (SDS) micelles of the ion dissociation degree is greater than the C12TABr micelles, which not only Increased the polarities of the surrounding environment of NR and also increased the solubility of water, resulting in the enhancement of the hydrogen bond with NR and the fluorescence intensity lower than that of C12TABr, but effectively promoted the formation of an intramolecular torsional charge transfer (TICT) excited state. Even up to more than 98%, the apparent appearance of only a single fluorescence peak at 634nm.NR sensitive to the environment characteristics of Gemini surfactant well reflects the initial formation of micellar incomplete structure information is to detect such have Strongly Interacting Amphiphilic Molecular Aggregation Behaviors as Good Probes.