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  Constant-adiabaticity radiofrequency pulses for generating long-lived singlet spin states in NMR

Rodin, B. A., Sheberstov, K. F., Kiryutin, A. S., Hill-Cousins, J. T., Brown, L. J., Brown, R. C. D., et al. (2019). Constant-adiabaticity radiofrequency pulses for generating long-lived singlet spin states in NMR. The Journal of Chemical Physics, 150(6): 064201, pp. 1-12. doi:10.1063/1.5079436.

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 Creators:
Rodin, Bogdan A., Author
Sheberstov, Kirill F., Author
Kiryutin, Alexey S., Author
Hill-Cousins, Joseph T., Author
Brown, Lynda J., Author
Brown, Richard C. D., Author
Jamain, Baptiste, Author
Zimmermann, Herbert1, Author           
Sagdeev, Renad Z., Author
Yurkovskaya, Alexandra V., Author
Ivanov, Konstantin L., Author
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1Department of Biomolecular Mechanisms, Max Planck Institute for Medical Research, Max Planck Society, ou_1497700              

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 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 C-13 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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Language(s): eng - English
 Dates: 2018-10-302019-01-142019-02-11
 Publication Status: Published online
 Pages: 12
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1063/1.5079436
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Title: The Journal of Chemical Physics
  Other : J. Chem. Phys.
Source Genre: Journal
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Publ. Info: Woodbury, N.Y. : American Institute of Physics
Pages: - Volume / Issue: 150 (6) Sequence Number: 064201 Start / End Page: 1 - 12 Identifier: ISSN: 0021-9606
CoNE: https://pure.mpg.de/cone/journals/resource/954922836226