31P13C shift correlated 2D NMR spectra of the AA'X spin system: Determination of PP coupling constants and their relative signs in symmetrical diphosphonates
Autor: | Gisela Ohms, Gisbert Grossmann, Haiko Beckmann |
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Rok vydání: | 1992 |
Předmět: | |
Zdroj: | Magnetic Resonance in Chemistry. 30:860-864 |
ISSN: | 1097-458X 0749-1581 |
DOI: | 10.1002/mrc.1260300912 |
Popis: | The indirect determination of P-P 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 |
Databáze: | OpenAIRE |
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