Study of the mono- and dianions of isomeric diphenylcarboranes by the method of C13NMR spectroscopy
β Scribed by L. I. Zakharkin; V. N. Kalinin; V. A. Antonovich; E. G. Rys
- Book ID
- 112437614
- Publisher
- Springer
- Year
- 1976
- Tongue
- English
- Weight
- 436 KB
- Volume
- 25
- Category
- Article
- ISSN
- 1573-9171
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π SIMILAR VOLUMES
Quantitative evaluations of the percentages of rotational isomers in 1-vinyl-l, Z 4-triazoles were obtained. The population of the s.cis(N(2)) form in 1-vinyl-l,2,4-triazole is greater by a factor of two than in the s-trans form. ## Quantitative evaluations of the percentages of the rotational isom
## Abstract ^13^C shifts are reported for diastereomers with halogen, oxygen and amino substituents which are mainly at vicinal chiral centres. The conformer populations underlying the ^13^C shift analysis can be verified by chemical means, such as change of temperature, solvent polarity (with diha