Group assignment and carbon and proton shift measurement by heteronuclear zero-quantum carbon-shift correlated 2D NMR in a single experiment

✍ Scribed by Huldrych Egli; Walter Graf

• Publisher: John Wiley and Sons
• Year: 1987
• Tongue: English
• Weight: 469 KB
• Volume: 25
• Category: Article
• ISSN: 0749-1581
• DOI: 10.1002/mrc.1260250117

✦ Synopsis

A two-dimensional heteronuclear multiple-quantum NMR experiment, based on the DEPT pulse sequence, for the simultaneous determination of the nature of proton-bearing chemical groups together with the measurement and correlation of carbon and proton chemical shifts is presented. Time and computer memory requirements for the proposed experiment are comparable to the acquisition of a two-dimensional C,H shift correlation spectrum. The data evaluation of the proposed zero-quantum carbon-shift correlated spectrum provides a list of chemical groups corroborated with their carbon and proton chemical shifts.

KEY WORDS 2D heteronuclear multiple-quantum NMR Group assignment I3C and 'H shift measurements