✦ LIBER ✦
31P13C shift correlated 2D NMR spectra of the AA'X spin system: Determination of PP coupling constants and their relative signs in symmetrical diphosphonates
✍ Scribed by H. Beckmann; G. Grossmann; G. Ohms
- Publisher
- John Wiley and Sons
- Year
- 1992
- Tongue
- English
- Weight
- 365 KB
- Volume
- 30
- Category
- Article
- ISSN
- 0749-1581
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✦ Synopsis
Abstract
The indirect determination of PP coupling constants and their relative signs in some symmetrical diphosphonates by ^31^P^13^C 2D NMR is introduced. Advantages and disadvantages of this method and others for the determination of the coupling constants of chemically equivalent nuclei are discussed. Strong coupling effects are analysed by means of simulated 2D spectra and the product operator formalism.