ISSN:
0030-4921
Keywords:
Chemistry
;
Analytical Chemistry and Spectroscopy
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
14N tickling experiments performed with simultaneous decoupling of substituent protons are used to show that 2J(14N—Hortho) and 3J(14N—Hmeta) are both positive in the N-methyl pyridinium ion and related species. Long range coupling extending over as many as five bonds is observed between N-methyl protons and ring protons in 14N-decoupled spectra. Triple resonance decoupling is used to permit an analysis of the AA′MM′ spin system given by the ring proton of N-methyl pyrazinium iodide.
Additional Material:
4 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/mrc.1270040119
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