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Heteronuclear decoupling interference during symmetry-based homonuclear recoupling in solid-state NMR.

Authors
  • Marin-Montesinos, Ildefonso
  • Brouwer, Darren H
  • Antonioli, Giancarlo
  • Lai, Wai Cheu
  • Brinkmann, Andreas
  • Levitt, Malcolm H
Type
Published Article
Journal
Journal of magnetic resonance (San Diego, Calif. : 1997)
Publication Date
Dec 01, 2005
Volume
177
Issue
2
Pages
307–317
Identifiers
PMID: 16169757
Source
Medline
License
Unknown

Abstract

We examine the influence of continuous-wave heteronuclear decoupling on symmetry-based double-quantum homonuclear dipolar recoupling, using experimental measurements, numerical simulations, and average Hamiltonian theory. There are two distinct regimes in which the heteronuclear interference effects are minimized. The first regime utilizes a moderate homonuclear recoupling field and a strong heteronuclear decoupling field; the second regime utilizes a strong homonuclear recoupling field and a weak or absent heteronuclear decoupling field. The second regime is experimentally accessible at moderate or high magic-angle-spinning frequencies and is particularly relevant for many realistic applications of solid-state NMR recoupling experiments to organic or biological materials.

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