Efficient heteronuclear decoupling in MAS solid-state NMR using non-rotor-synchronized rCW irradiation

Asif Equbal, Subhradip Paul, Venus Singh Mithu, P. K. Madhu, Niels Chr Nielsen

Research output: Contribution to journalArticlepeer-review

Abstract

We present new non-rotor-synchronized variants of the recently introduced refocused continuous wave (rCW) heteronuclear decoupling method significantly improving the performance relative to the original rotor-synchronized variants. Under non-rotor-synchronized conditions the rCW decoupling sequences provide more efficient decoupling, are easier to setup, and prove more robust towards experimental parameters such as radio frequency (rf) field amplitude and spinning frequency. This is demonstrated through numerical simulations substantiated with experimental results under different sample spinning and rf field amplitude conditions for powder samples of U-13C-glycine and U-13C-L-histidine·HCl·H2O.

Original languageEnglish (US)
Pages (from-to)104-109
Number of pages6
JournalJournal of Magnetic Resonance
Volume246
DOIs
StatePublished - Sep 2014

Keywords

  • Heteronuclear dipolar decoupling
  • Magic-angle spinning
  • Non-rotor-synchronization
  • rCW decoupling
  • Solid-state NMR

ASJC Scopus subject areas

  • Biophysics
  • Biochemistry
  • Nuclear and High Energy Physics
  • Condensed Matter Physics

Fingerprint

Dive into the research topics of 'Efficient heteronuclear decoupling in MAS solid-state NMR using non-rotor-synchronized rCW irradiation'. Together they form a unique fingerprint.

Cite this