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Determination of Heteronuclear Long-Range 1H–13C and 1H–15N Coupling Constants of Harman by Modified J-HMBC 2D NMR Techniques

✍ Scribed by Hiroko Seki; Tatsuhiro Tokunaga; Hiroaki Utsumi; Kentaro Yamaguchi

Publisher
Elsevier Science
Year
2000
Tongue
French
Weight
178 KB
Volume
56
Category
Article
ISSN
0040-4020

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✦ Synopsis

AbstractÐSelective and double-selective J-HMBC 2D methods were developed and employed to determine the coupling constants of harman (1). The 1 H± 13 C and 1 H± 15 N long-range coupling constants could be accurately determined without interference from the 1 H± 1 H Jmodulation effect. We also applied selective J-HMBC 2D to 2-¯uoropyridine (2) to con®rm effectiveness.

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