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dc.contributor.authorJIANG, YB
dc.contributor.author江云宝
dc.contributor.authorLIN, L
dc.date.accessioned2012-10-09T01:16:44Z
dc.date.available2012-10-09T01:16:44Z
dc.date.issued1995
dc.identifier.citationAPPLIED SPECTROSCOPY,1995,49(7):1017-1021zh_CN
dc.identifier.issn0003-7028
dc.identifier.urihttps://dspace.xmu.edu.cn/handle/2288/13710
dc.description.abstractDual fluorescence of p-dimethylaminobenzoic acid (DMABOA), typical of excited-state twisted intramolecular charge transfer (TICT), in the cetyltrimethylammonium (CTAB)/1-heptanol/H2O reverse micelle has been monitored as a function of a number of factors such as the water pool size, the bulk concentrations of DMABOA and CTAB, and the pH and [KF]/[KBr] ratio in the water pool. Two fluorescence parameters, i.e., the wavelength of the TICT emission band and the intensity ratio of the TICT band to the LE (locally excited state) band, I-a/I-b, are employed to measure the effects of these factors. The position of the DMABOA molecule in the reverse micelle is ascertained to be among the hydrocarbon chains close to the water pool with its (CH3)(2)N group towards the bulk 1-heptanol while the carboxylic group interacts with the polar head of the surfactant electrostatically. The TICT of DMABOA at this position is shown to be similar to that in an organic solvent, and the reverse micelle exerts a restriction on the TICT of DMABOA. It seems that the water molecules in the water pool do not penetrate into the hydrocarbon region of the reverse micelle.zh_CN
dc.language.isoenzh_CN
dc.publisherSOC APPLIED SPECTROSCOPYzh_CN
dc.subjectDUAL FLUORESCENCEzh_CN
dc.subjectTWISTED INTRAMOLECULAR CHARGE TRANSFER (TICT)zh_CN
dc.subjectP-DIMETHYLAMINOBENZOIC ACIDzh_CN
dc.subjectREVERSE MICELLEzh_CN
dc.titleDUAL FLUORESCENCE OF P-DIMETHYLAMINOBENZOIC ACID IN CETYLTRIMETHYLAMMONIUM BROMIDE (CTAB)/1-HEPTANOL/WATER REVERSE MICELLEzh_CN
dc.typeArticlezh_CN


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