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Proton, carbon??13 and fluorine??19 NMR studies of N??alkyl??8??fluoroquinolinium halides: Relative signs of through??space 1H 19F and 13C 19F coupling constants

…, KA Clark, GW Gribble, KW Haden…

文献索引:Barfield, M.; Walter, S. R.; Clark, K. A.; Gribble, G. W.; Haden, K. W.; et al. Organic Magnetic Resonance, 1982 , vol. 20, # 2 p. 92 - 101

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被引用次数: 17

摘要

Abstract Because of experimental and theoretical interest in long-range 1 H [BOND] 19 F and 13 C [BOND] 19 F coupling constants between proximate atoms, a series of N- alkylfluoroquinolinium compounds was synthesized and the NMR parameters were accurately measured. By means of spin tickling and selective population inversion difference spectroscopy, the 5 J (HF) and 4 J (CF), which are associated with the proximate fluorine ...