Temperature dependence of the C-methyl chemical shifts in N-substituted hydrazones of acetone
β Scribed by C.I. Stassinopoulou; C. Zioudrou; G.J. Karabatsos
- Book ID
- 104245212
- Publisher
- Elsevier Science
- Year
- 1972
- Tongue
- French
- Weight
- 186 KB
- Volume
- 13
- Category
- Article
- ISSN
- 0040-4039
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## Abstract ^13^C n.m.r. spectra of methyl substituted thianes and thianium cations have been determined. The magnitude of the ^13^C substituent effects of an equatorial methyl group or of a __gem__βdimethyl grouping appear to depend in a systematic way on whether the carbon atom concerned is adjac
## Abstract The temperature dependence of the chemical shifts of ten commonly employed ^1^H n.m.r. reference compounds of interest to both organic and biological workers was determined using the temperature independent standard ethane at low density. The water soluble standards sodium 2,2βdimethylβ