Constant‐adiabaticity radiofrequency pulses for generating long‐lived singlet spin states in NMR
Constant‐adiabaticity radiofrequency pulses for generating long‐lived singlet spin states in NMR
A method is implemented to perform “fast” adiabatic variation of the spin Hamiltonian by imposing the constant adiabaticity condition. The method is applied to improve the performance of singlet‐state Nuclear Magnetic Resonance (NMR) experiments, specifically, for efficient generation and readout of the singlet spin order in coupled spin pairs by applying adiabatically ramped RF‐fields. Test experiments have been performed on a specially designed molecule having two strongly coupled 13C spins and on selectively isotopically labelled glycerol having two pairs of coupled protons. Optimized RF‐ramps show improved performance in comparison, for example, to linear ramps. We expect that the methods described here are useful, not only for singlet‐state NMR experiments, but also for other experiments in magnetic resonance, which utilize adiabatic variation of the spin Hamiltonian.
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Rodin, Bogdan A.
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Sheberstov, Kirill F.
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Kiryutin, Alexey S.
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Hill-cousins, Joseph T
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Brown, Lynda J.
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Brown, Richard C.D.
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Jamain, Baptiste
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Zimmermann, Herbert
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Sagdeev, Renad Z.
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Yurkovskaya, Alexandra V.
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Ivanov, Konstantin L.
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Rodin, Bogdan A.
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Sheberstov, Kirill F.
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Kiryutin, Alexey S.
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Hill-cousins, Joseph T
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Brown, Lynda J.
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Brown, Richard C.D.
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Jamain, Baptiste
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Zimmermann, Herbert
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Sagdeev, Renad Z.
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Yurkovskaya, Alexandra V.
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Ivanov, Konstantin L.
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Rodin, Bogdan A., Sheberstov, Kirill F., Kiryutin, Alexey S., Hill-cousins, Joseph T, Brown, Lynda J., Brown, Richard C.D., Jamain, Baptiste, Zimmermann, Herbert, Sagdeev, Renad Z., Yurkovskaya, Alexandra V. and Ivanov, Konstantin L.
(2019)
Constant‐adiabaticity radiofrequency pulses for generating long‐lived singlet spin states in NMR.
The Journal of Chemical Physics, 150 (6), .
(doi:10.1063/1.5079436).
Abstract
A method is implemented to perform “fast” adiabatic variation of the spin Hamiltonian by imposing the constant adiabaticity condition. The method is applied to improve the performance of singlet‐state Nuclear Magnetic Resonance (NMR) experiments, specifically, for efficient generation and readout of the singlet spin order in coupled spin pairs by applying adiabatically ramped RF‐fields. Test experiments have been performed on a specially designed molecule having two strongly coupled 13C spins and on selectively isotopically labelled glycerol having two pairs of coupled protons. Optimized RF‐ramps show improved performance in comparison, for example, to linear ramps. We expect that the methods described here are useful, not only for singlet‐state NMR experiments, but also for other experiments in magnetic resonance, which utilize adiabatic variation of the spin Hamiltonian.
Text
JCP 6 vol 150 iss 6064201 1
- Accepted Manuscript
More information
Accepted/In Press date: 14 January 2019
e-pub ahead of print date: 11 February 2019
Identifiers
Local EPrints ID: 428258
URI: http://eprints.soton.ac.uk/id/eprint/428258
ISSN: 0021-9606
PURE UUID: fe2fa759-ce2c-4dc5-a7d9-d2af0a6fd3f4
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Date deposited: 19 Feb 2019 17:30
Last modified: 16 Mar 2024 03:01
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Contributors
Author:
Bogdan A. Rodin
Author:
Kirill F. Sheberstov
Author:
Alexey S. Kiryutin
Author:
Joseph T Hill-cousins
Author:
Baptiste Jamain
Author:
Herbert Zimmermann
Author:
Renad Z. Sagdeev
Author:
Alexandra V. Yurkovskaya
Author:
Konstantin L. Ivanov
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