## Abstract ^13^C and ^15^N NMR chemical shifts were measured for __N__^1^‐alkyl‐__N__^2^‐arylthioureas. The absence of decoalescence of the __N__^1^‐alkyl group carbon signals down to 190 K, the europium‐induced chemical shifts and the molecular mechanics calculations indicate that the preferred c
13C and 1H NMR study of N-5′-methylsalicylideneanilines
✍ Scribed by K. Kishore; D. N. Sathyanarayana; V. A. Bhanu
- Publisher
- John Wiley and Sons
- Year
- 1987
- Tongue
- English
- Weight
- 297 KB
- Volume
- 25
- Category
- Article
- ISSN
- 0749-1581
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✦ Synopsis
The "C and 'H NMR spectra of six N-5'-methylsalicylideneanilines have been studied. Correlations of the chemical shifts of C-a (azomethine carbon) and C-4' with the cr, F, R , crI and a: parameters have been examined for N-5'-methylsalicylideneanilines, and also for N-benzylideneanilines and N-salicylideneanilines. The results suggest that the first compounds have a nearly planar conformation whereas the second and third type of derivatives have a twisted conformation.
KEY WORDS 13C and 'H NMR N-5'-methylsalicylideneanilines a, F and R, uI and a : Conformation.
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