Long Range Phenomena III 4J Coupling Between Protons of Gem-Methyl Groups
✍ Scribed by M. Anteunis; D. Tavernier
- Book ID
- 101764683
- Publisher
- Wiley (John Wiley & Sons)
- Year
- 2010
- Weight
- 112 KB
- Volume
- 76
- Category
- Article
- ISSN
- 0037-9646
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📜 SIMILAR VOLUMES
An equation is formulated on the basis of theoretical INDOIFPI' calculations which describes the angular dependence of the propanic long-range coupling constant 4 J ~, H in substituted HCCCH, fragments. This equation is a truncated Fourier series in the torsion angle 6, HCCMe, which takes into acco
## Abstract 1,2,3,4‐tetrachloro‐5,6,7,8‐tetrafluoro‐9‐methyltriptycene was studied in NMR spectra at low temperatures where the methyl group dynamics is frozen. Values of ^5^__J__(^19^F,^1^H), ^1^__J__(^13^C,^1^H), and ^2^__J__(^1^H,^1^H) for the individual methyl protons were measured. They are in