Accurate and Precise Measurement of Heteronuclear Long-Range Couplings by a Gradient-Enhanced Two-Dimensional Multiple-Bond Correlation Experiment

We propose a phase-sensitive gradient-enhanced two-dimensional heteronuclear multiple-bond correlation (psge-2D HMBC) experiment for speedy, accurate, and precise measurement of2JCHand3JCH. The experiment does not suppress one-bond correlations. Rather, the value of a desired long-rangeJCHis obtaine...

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Veröffentlicht in:	Journal of magnetic resonance (1997) 1998-02, Vol.130 (2), p.296-299
Hauptverfasser:	Sheng, Shuqun, van Halbeek, Herman
Format:	Artikel
Sprache:	eng
Schlagworte:	Fourier Analysis Image Processing, Computer-Assisted Magnetic Resonance Spectroscopy - methods Molecular Structure Raffinose - chemistry Reproducibility of Results Software
Online-Zugang:	Volltext
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Beschreibung
Zusammenfassung:	We propose a phase-sensitive gradient-enhanced two-dimensional heteronuclear multiple-bond correlation (psge-2D HMBC) experiment for speedy, accurate, and precise measurement of2JCHand3JCH. The experiment does not suppress one-bond correlations. Rather, the value of a desired long-rangeJCHis obtained from the pertinent cross-peak pattern in the HMBC spectrum, using the corresponding1JCHcorrelation pattern as reference. The application of the proposed experiment is illustrated for the trisaccharide raffinose.
ISSN:	1090-7807 1096-0856
DOI:	10.1006/jmre.1997.1318