Measurement of dipolar couplings in partially oriented molecules by local field NMR spectroscopy with low-power decoupling

Malgorzata Marjanska, Franca Castiglione, Jamie D. Walls, Alexander Pines

Research output: Contribution to journalArticle

7 Scopus citations

Abstract

Low-power phase-modulated Lee-Goldburg homonuclear decoupling was used to record PDLF spectra of fluorine-substituted benzene derivatives dissolved in nematic thermotropic liquid crystalline solvents. The low-power decoupling minimizes sample heating during RF irradiation while still achieving highly resolved PDLF spectra. The method is illustrated by recording spectra for 1,3-dichloro-4-fluoro-5-nitrobenzene, 1,3-dichloro-4-fluorobenzene, and 1,2-difluorobenzene dissolved in different nematic solvents.

Original languageEnglish (US)
Pages (from-to)52-59
Number of pages8
JournalJournal of Magnetic Resonance
Volume158
Issue number1-2
DOIs
StatePublished - Nov 30 2002
Externally publishedYes

Keywords

  • Heteronuclear spin-spin couplings
  • Liquid crystalline solvents
  • Multiple pulse sequence
  • NMR
  • PDLF
  • Phase-modulated Lee-Goldburg
  • PMLG
  • Proton-detected local field

ASJC Scopus subject areas

  • Molecular Biology
  • Physical and Theoretical Chemistry
  • Spectroscopy
  • Radiology Nuclear Medicine and imaging
  • Condensed Matter Physics

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