31P13C shift correlated 2D NMR spectra of the AA'X spin system: Determination of PP coupling constants and their relative signs in symmetrical diphosphonates

Autor: Gisela Ohms, Gisbert Grossmann, Haiko Beckmann
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