## Abstract Several sulfanilamideβtype compounds in their solid state have been investigated by the ^14^N nuclear quadrupole resonance (NQR) technique. The electron distributions at the sites of the nitrogen atoms, calculated by the Townes and Dailey theory, indicate a significant correlation betwe
14N nuclear quadrupole resonance study of substituted anilines and prediction of in vitro activity of sulfanilamides
β Scribed by S. G. Greenbaum; S. N. Subbarao; P. J. Bray; T. Oja
- Publisher
- John Wiley and Sons
- Year
- 1980
- Tongue
- English
- Weight
- 400 KB
- Volume
- 14
- Category
- Article
- ISSN
- 0749-1581
No coin nor oath required. For personal study only.
β¦ Synopsis
Abstract
^14^N nuclear quadrupole resonance (NQR) spectra of 22 monosubstituted anilines are reported and analyzed in the framework of the Townes and Dailey theory. Satisfactory correlations of the NQR data with both the Hammett Ο parameters and the in vitro biological activities of the corresponding sulfanilamides have been found. The results obtained suggest that the nitrogen loneβpair orbital is more sensitive than the nitrogenβcarbon sigma orbital is to substituent effects.
π SIMILAR VOLUMES
## Abstract The reorientation of a pyridinium ion in the paraelectric and antiferroelectric phase of PyHICl~4~ is investigated using ^1^Hο£Ώ^14^N nuclear quadrupole double resonance (NQDR). The ^14^N nuclear quadrupole resonance frequencies are measured. The temperature variations of the principal va
Rotational isomerism of l,l'-(1,8-naphthylene)bis(lH-1,2,3-triazoles) was studied by dynamic NMR spectroscopy. Rotation around the C-N bond between triazole and the naphthalene rings in such compounds is restricted owing to the repulsion of the two triazole rings. The rotational barrier around the C