The 15N chemical shifts and a large collection of coupling constants pertaining to azoles have been gathered from the literature. To complete this collection and to check some anomalies, the spectra of 14 compounds in several solvents were recorded again and 31 compounds were studied for the first t
Factor analysis of substituent effects on the NMR parameters of pyridines and benzenes
β Scribed by A. Yu. Denisov; V. I. Mamatyuk
- Book ID
- 112452491
- Publisher
- Springer
- Year
- 1989
- Tongue
- English
- Weight
- 401 KB
- Volume
- 38
- Category
- Article
- ISSN
- 1573-9171
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π SIMILAR VOLUMES
also required of the values of Jo determined from canpounds with the same substituents in & and meta positions; and of the values of J, determined from ortho. meta and E-disubstituted benzenes. This treatment of the data offers the opportunity of deducing spectral parameters of benzene as accurate
## Abstract Intermolecular effects are shown to induce a variation of about 5 ppm in the nitrogen NMR shieldings of aromatic nitro groups. The latter turn out to be comparable to those exerted by substituents in nitrobenzene derivatives in solutions in a given solvent. Substituent effects on the NO