Nuclear quadrupole resonance of 14N in pyrimidines, purines and their nucleosides
β Scribed by D.T Edmonds; P.A Speight
- Publisher
- Elsevier Science
- Year
- 1972
- Weight
- 540 KB
- Volume
- 6
- Category
- Article
- ISSN
- 0022-2364
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π SIMILAR VOLUMES
## 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
## 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
The niirogen-14 nuc!ear qundrupole resonance spectrum of the potassium sait of 7,7', 8,8'-tetracyanoquinodimcthan (K-TCNQ) as found at liquid nitrogen temperature is presented. The data are interpreted in terms of the Townes and Dailey theory and compared with those available for sleutrnl TCNQO. The