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首页> 外文期刊>The Journal of Chemical Physics >LASER-INDUCED FLUORESCENCE SPECTROSCOPY OF JET COOLED P-AMINOPHENOL
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LASER-INDUCED FLUORESCENCE SPECTROSCOPY OF JET COOLED P-AMINOPHENOL

机译：射流冷却的对氨基苯酚的激光诱导荧光光谱

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The laser-induced fluorescence spectra of p-aminophenol both in excitation and emission have been studied in a supersonic jet apparatus. The characterization of the observed spectra was done by comparison with other related substituted anilines and the LR data available in the literature. The excitation spectrum resembles that of aniline with optical activity mainly confined to 6a, 1, and the NH2 inversion mode. In addition, the C-X in-plane bending mode 9b was also found to be optically active. The 6a mode dominates in most of the dispersed fluorescence spectra and shows a strong Franck-Condon activity. Unlike other similar molecules, the Delta upsilon=0 transitions were weak in the single vibronic level fluorescence spectra of 6a(1) and 1(1), which has been qualitatively explained in terms of Franck-Condon analysis. The onset of intramolecular vibrational redistribution occurs at 1135 cm(-1), which is much higher than many substituted anilines. The van der Waals complexes viz. p-aminophenol-Ar-1 and p-aminophenol-Ar-2 were observed. A symmetric (11) complex for the p-aminophenol-Ar-2 is proposed based on the redshift additivity. (C) 1996 American Institute of Physics. [References: 55]
机译：在超音速喷射设备中已经研究了激发和发射过程中对氨基苯酚的激光诱导荧光光谱。通过与其他相关的取代苯胺和文献中的LR数据进行比较，对观察到的光谱进行表征。激发光谱类似于苯胺的激发光谱，其光学活性主要限于6a，1和NH2转化模式。另外，还发现C-X面内弯曲模式9b是光学活性的。 6a模式在大多数分散的荧光光谱中占主导地位，并显示出很强的弗兰克-康登活性。与其他类似分子不同，Delta upsilon = 0跃迁在6a（1）和1（1）的单振动电子水平荧光光谱中较弱，这已通过Franck-Condon分析进行了定性解释。分子内振动的重新分布发生在1135 cm（-1），这比许多取代的苯胺要高得多。范德华复合体。观察到对氨基苯酚-Ar-1和对氨基苯酚-Ar-2。基于红移可加性，提出了对氨基苯酚-Ar-2的对称（1 1）配合物。 （C）1996年美国物理研究所。 [参考：55]

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