The effects of intermolecular interactions on 13C NMR chemical shifts. I. Methyl alcohol
โ Scribed by T. Yamanobe; I. Ando; G.A. Webb
- Publisher
- Elsevier Science
- Year
- 1986
- Tongue
- English
- Weight
- 328 KB
- Volume
- 33
- Category
- Article
- ISSN
- 0167-7322
No coin nor oath required. For personal study only.
๐ SIMILAR VOLUMES
Exchange of amide protons with deuterium results in changes of 13 C chemical shifts for carbon atoms near the site of substitution (CH{N and N{C|O). There is a measurable decrease in the isotopic shifts of CH{N for cycloalkylacetamides as ring size increases from 3 to 8 and for lactams as ring size
## Abstract ^13^C chemical shifts and ^31^P,^13^C coupling constants are reported for nine 1โhydroxyalkylphosphonic and two additional phosphonic acids. The ฮฑโsubstituentโinduced chemical shifts (ฮฑโSCS) of the phosphonate group were calculated and their nonโadditivity was observed. Good linear corr
There are many literature examples correlating C-13 n.m.r. substituent chemical shifts in substituted benzenes with Bsamett substituent constants.' The direction of these substituent chemical shifts has been logically explained in terms of substituent electronic properties; the electron donors resul