Exploring various modulation-sideband recoupling conditions of SHA+ sequence at fast MAS

Ming Shen, Qinghua Liu, Julien Trébosc, Oliver Lafon, Yuichi Masuda, K. Takegoshi, Jean Paul Amoureux, Bingwen Hu, Qun Chen

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)


We explore modulation-sideband recoupling conditions of the 13C-13C Second-order Hamiltonian among Analogous nuclei plus pulse sequence (SHA+), and found that this sequence can be used in two different recoupling regimes. The first regime, νR>Δν isomax, is recommended for broad-band recoupling to avoid any rotational resonance broadening. In this regime, the spinning speed should be only slightly larger than Δνisomax, to obtain the best transfer efficiency. The second regime, νR<Δνisomax, can be used to observe long-range constraints with lower spinning speed, which increases the transfer efficiency, and may allow using bigger rotors to increase the S/N ratio.

Original languageEnglish
Pages (from-to)42-47
Number of pages6
JournalSolid State Nuclear Magnetic Resonance
Publication statusPublished - 2013 Oct


  • Bio-molecules
  • Fast MAS
  • Homo-nuclear correlation
  • Modulation sidebands
  • Solid-state NMR

ASJC Scopus subject areas

  • Radiation
  • Chemistry(all)
  • Nuclear and High Energy Physics
  • Instrumentation


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