Selective 1D HCH experiment: A fast NMR tool that connect protons belonging to different spin systems

Sergi Gil, Juan Félix Espinosa, Teodor Parella

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3 Citations (Scopus)

Abstract

A selective 1D version of the HCH experiment (selHCH) is proposed for the efficient and fast correlation between protons belonging to different spin systems. The experiment consists of two consecutive, doubly selective heteronuclear J(CH) transfer steps that can individually be optimized. As any conventional proton-selective 1D experiment, the successful application of a frequency-selective 180° pulse on a well-isolated proton is the only practical requirement. The resulting clean selHCH spectrum probes to be an excellent complement to the conventional selTOCSY experiment to trace out proton-proton J connectivities through transparent non-protonated carbons or heteroatom centers. Several selHCH examples on small molecules are provided showing the improvements with respect to the selTOCSY experiment. © 2011 John Wiley & Sons, Ltd.
Original languageEnglish
Pages (from-to)301-306
JournalMagnetic Resonance in Chemistry
Volume49
Issue number6
DOIs
Publication statusPublished - 1 Jun 2011

Keywords

  • HCH experiment
  • long-range correlation
  • NMR spectroscopy
  • selective 1D experiments
  • selective excitation
  • selective TOCSY
  • selHCH

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