13C NMR and ESR study of structural and functional group characteristics of macromolecular compounds of soils
β Scribed by E. D. Lodygin; V. A. Beznosikov
- Book ID
- 111461589
- Publisher
- SP MAIK Nauka/Interperiodica
- Year
- 2006
- Tongue
- English
- Weight
- 153 KB
- Volume
- 79
- Category
- Article
- ISSN
- 1070-4272
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π SIMILAR VOLUMES
## Abstract The ^13^C chemical shifts and oneβbond carbonβhydrogen coupling constants have been obtained for some hydroxycoumarins and their corresponding acetoxy and methoxy derivatives. The changes in the oneβbond carbonβhydrogen coupling constants resulting from the conversion of a hydroxy group
The =C chemical shifts and the carbon-proton coupling constants have been determined for some chlorinated isobutane and isobutene compounds. The one-bond coupling constants in isobutane derivatives showed a regular increase with an increasing number of y-chlorine substituents. The three-bond couplin