The study of the indirect spin-spin coupling constants Jcl3--H and Jc13-F, deriaed ,from proton and fluorine magnetic resonance spectra, leaded to the conclusion that whereas the Jc13-H data reflect rather truly the state of hybridization of the carbon atom in the C-H bonds (l), the J ~1 3 -F values
β¦ LIBER β¦
CARBON-13 SPLITTINGS IN FLUORINE NUCLEAR MAGNETIC RESONANCE SPECTRA 1
β Scribed by Muller, Norbert; Carr, Duane T.
- Book ID
- 121313813
- Publisher
- American Chemical Society
- Year
- 1963
- Tongue
- English
- Weight
- 518 KB
- Volume
- 67
- Category
- Article
- ISSN
- 0022-3654
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The =C chemical shifts of a series of isoflavones having hydroxy, acetoxy, methoxy and methylenedioxy substituents are compared. Some general relationships between substitution patterns and chemical shifts, useful for the identitication of naturally occurring isoflavones, are outlined.