## Abstract Nitrogenβ14 nuclear quadrupole resonance frequencies at 77 K are reported for a series of carbazole compounds including __N__βvinylcarbazole. Differences in charge distribution between pyrrole and carbazole are explained on the basis of delocalization of pi electrons. Effects of the ald
β¦ LIBER β¦
Nuclear quadrupole resonance and relaxation of 14N in CH3CN
β Scribed by A. Tzalmona
- Publisher
- Elsevier Science
- Year
- 1971
- Tongue
- English
- Weight
- 122 KB
- Volume
- 34
- Category
- Article
- ISSN
- 0375-9601
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## Abstract Nitrogenβ14 nuclear quadrupole resonance (NQR) spectra of nicotinic acid derivatives, known as antitumor agents, are reported and analyzed in the framework of the Townes and Dailey theory. A strong correlation exists between the charge difference Ο~NC~ β Ο at the pyridinic nitrogen and