Novel selective 1D experiments based on heteronuclear J cross-polarization

Teodor Parella, Jordi Belloc, Francisco Sánchez-Ferrando, Albert Virgili

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4 Citations (Scopus)

Abstract

Selective 1H-13C inverse NMR experiments based on heteronuclear cross-polarization (HCP) are presented. Practical details on the implementation of one-bond [1J(C,H)] optimized and pseudo-3D HCP experiments combined with gradient coherence selection are reported. On the other hand, accurate values for long-range proton-carbon coupling constants [nJ(C,H); n > 1] can be measured from ultra-clean in-phase 1D proton multiplets resulting of long-range optimized experiments. Alternatively, such heteronuclear connectivities can be also clearly elucidated using a 1H-selective 13C-detected version in which signals exclusively arise from selective transfer of a selected proton to all long-range coupled carbon nuclei. Copyright © 1999 John Wiley & Sons, Ltd.
Original languageEnglish
Pages (from-to)631-636
JournalMagnetic Resonance in Chemistry
Volume37
Issue number9
DOIs
Publication statusPublished - 1 Jan 1999

Keywords

  • Heteronuclear cross-polarization
  • Long-range proton-carbon coupling constants
  • NMR
  • Pulsed field gradients
  • Selective inverse experiments

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