Rotary resonance recoupling for half-integer quadrupolar nuclei in solid-state nuclear magnetic resonance spectroscopy

Sungsool Wi; John W. Logan; Dimitris Sakellariou; Jamie D. Walls; Alexander Pines

doi:10.1063/1.1506907

Rotary resonance recoupling for half-integer quadrupolar nuclei in solid-state nuclear magnetic resonance spectroscopy

Sungsool Wi, John W. Logan, Dimitris Sakellariou, Jamie D. Walls, Alexander Pines

Research output: Contribution to journal › Article › peer-review

37 Scopus citations

Abstract

The reintroduction of various interactions such as chemical shift anisotropy (CSA), heteronuclear dipolar (HTD) and homonuclear dipolar (HMD) terms involving quadrupolar nuclei were investigated under rotary resonance (RR). When the signal from the central transition coherence (CTC) of half-integer quadrupolar nuclei under spin-locking condition provided by a low rf field and a high spinning speed was sampled stroboscopically at integer multiples of the rotor period, the quarupolar broadening mechanism disappears under the dual rf-spinning modulations. This paper demonstrates experimental evidence and a theoretical framework incorporating an average Hamiltonian theory (AHT) to explain various recouplings involving quadrupolar nuclei under various RR conditions.

Original language	English (US)
Pages (from-to)	7024-7033
Number of pages	10
Journal	Journal of Chemical Physics
Volume	117
Issue number	15
DOIs	https://doi.org/10.1063/1.1506907
State	Published - Oct 15 2002
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy(all)
Physical and Theoretical Chemistry

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abstract = "The reintroduction of various interactions such as chemical shift anisotropy (CSA), heteronuclear dipolar (HTD) and homonuclear dipolar (HMD) terms involving quadrupolar nuclei were investigated under rotary resonance (RR). When the signal from the central transition coherence (CTC) of half-integer quadrupolar nuclei under spin-locking condition provided by a low rf field and a high spinning speed was sampled stroboscopically at integer multiples of the rotor period, the quarupolar broadening mechanism disappears under the dual rf-spinning modulations. This paper demonstrates experimental evidence and a theoretical framework incorporating an average Hamiltonian theory (AHT) to explain various recouplings involving quadrupolar nuclei under various RR conditions.",

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AU - Wi, Sungsool

AU - Logan, John W.

AU - Sakellariou, Dimitris

AU - Walls, Jamie D.

AU - Pines, Alexander

PY - 2002/10/15

Y1 - 2002/10/15

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