NMR Study of Pentafluoroaniline - Hydrogen Bonding and Proton Exchange |
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Authors: | I. Wawer Z. Kecki G. S. Denisow |
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Affiliation: | 1. Laboratory of Molecular Interactions, Department of Chemistry , University of Warsaw , 02-093, Warsaw, Poland;2. Institute of Physics, Leningrad State University , Leningrad, Petrodvorez, 198904, USSR |
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Abstract: | The temperature and concentration dependence of 1H NMR chemical shifts of pentafluoroaniline and aniline in acetone (Ac), dimethylsulphoxide (DMSO) and hexamethylphosphortriamide (HMPA) indicate that the effect of hydrogen bond formation, δ = δobs - δA' is similar for both anilines. The analysis of 1H NMR spectra showed, that proton exchange of t-butyl alcohol (tBA) and 2,6-di-t-butylphenol (DTBPh) with pentafluoroaniline is slower than that with aniline. |
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Keywords: | pentafluoroaniline hydrogen bonds 1H NMR |
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