## 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
Nuclear quadrupole resonance of 14N in hydrazine derivatives
β Scribed by Ryuichi Ikeda; Seiji Noda; Daiyu Nakamura; Masaji Kubo
- Publisher
- Elsevier Science
- Year
- 1971
- Weight
- 555 KB
- Volume
- 5
- 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
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
## Abstract ^14^N Nuclear quadrupole resonance (NQR) spectra of several __N__βacetyl amino acids and related compounds are reported and analyzed within the framework of the Townes and Dailey theory. The inductive effect of the chloroacetyl group on the nitrogen is discussed. A positive correlation