Broadband proton-decoupled proton spectra

Andrew J. Pell, Richard A.E. Edden, James Keeler

Research output: Contribution to journalArticlepeer-review

Abstract

We present a new method for recording broadband proton-decoupled proton spectra with absorption mode lineshapes and substantially correct integrals; in both these respects, the new method has significant advantages over conventional J-spectroscopy. In our approach, the decoupled spectrum is simply obtained from the 45° projection of the diagonal-peak multiplets of an anti z-COSY spectrum. This method is straightforward to apply, and does not require any unusual data processing. However, there is a significant reduction in sensitivity when compared to a conventional proton spectrum. The method is demonstrated for typical medium-sized molecules, and it is also shown how such a decoupled spectrum can be used to advantage in measurements of diffusion constants (DOSY), the measurement of relaxation parameters, and the analysis of complex mixtures.

Original languageEnglish (US)
Pages (from-to)296-316
Number of pages21
JournalMagnetic Resonance in Chemistry
Volume45
Issue number4
DOIs
StatePublished - Apr 1 2007

Keywords

  • Broadband decoupling
  • DOSY
  • Diffusion
  • NMR
  • Z-COSY

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)

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