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Error compensation without a time penalty: robust spin-lock-induced crossing in solution NMR

Error compensation without a time penalty: robust spin-lock-induced crossing in solution NMR
Error compensation without a time penalty: robust spin-lock-induced crossing in solution NMR

A modification of the widely used spin-lock-induced crossing (SLIC) procedure is proposed for the solution nuclear magnetic resonance (NMR) of strongly coupled nuclear spin systems, including singlet NMR and parahydrogen-enhanced hyperpolarized NMR experiments. The compensated-SLIC (cSLIC) scheme uses a repetitive sequence where the repeated element employs two different radio-frequency field amplitudes. Effective compensation for deviations in the radio-frequency field amplitude is achieved without increasing the overall duration of the SLIC sequence. The advantageous properties of cSLIC are demonstrated by numerical simulations and representative experiments.

1948-7185
4161-4166
Sabba, Mohamed
bef5e5e8-18b2-43d9-8969-4a9b25bb8691
Bengs, Christian
cd3282d0-27ad-444f-bcb4-70eeab0029b9
Heramun, Urvashi D.
d528559c-9eb2-4b84-aa03-6b61fedfdaba
Levitt, Malcolm H.
bcc5a80a-e5c5-4e0e-9a9a-249d036747c3
Sabba, Mohamed
bef5e5e8-18b2-43d9-8969-4a9b25bb8691
Bengs, Christian
cd3282d0-27ad-444f-bcb4-70eeab0029b9
Heramun, Urvashi D.
d528559c-9eb2-4b84-aa03-6b61fedfdaba
Levitt, Malcolm H.
bcc5a80a-e5c5-4e0e-9a9a-249d036747c3

Sabba, Mohamed, Bengs, Christian, Heramun, Urvashi D. and Levitt, Malcolm H. (2026) Error compensation without a time penalty: robust spin-lock-induced crossing in solution NMR. Journal of Physical Chemistry Letters, 17 (14), 4161-4166. (doi:10.1021/acs.jpclett.6c00524).

Record type: Article

Abstract

A modification of the widely used spin-lock-induced crossing (SLIC) procedure is proposed for the solution nuclear magnetic resonance (NMR) of strongly coupled nuclear spin systems, including singlet NMR and parahydrogen-enhanced hyperpolarized NMR experiments. The compensated-SLIC (cSLIC) scheme uses a repetitive sequence where the repeated element employs two different radio-frequency field amplitudes. Effective compensation for deviations in the radio-frequency field amplitude is achieved without increasing the overall duration of the SLIC sequence. The advantageous properties of cSLIC are demonstrated by numerical simulations and representative experiments.

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Accepted/In Press date: 16 March 2026
e-pub ahead of print date: 23 March 2026
Published date: 9 April 2026

Identifiers

Local EPrints ID: 512596
URI: http://eprints.soton.ac.uk/id/eprint/512596
ISSN: 1948-7185
PURE UUID: e64aae41-16dd-4fdf-b247-4a0630e5c4c1
ORCID for Mohamed Sabba: ORCID iD orcid.org/0000-0003-2707-1821
ORCID for Christian Bengs: ORCID iD orcid.org/0000-0002-0196-7817
ORCID for Urvashi D. Heramun: ORCID iD orcid.org/0009-0007-7524-6098
ORCID for Malcolm H. Levitt: ORCID iD orcid.org/0000-0001-9878-1180

Catalogue record

Date deposited: 09 Jul 2026 16:56
Last modified: 12 Aug 2026 04:05

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Contributors

Author: Mohamed Sabba ORCID iD
Author: Christian Bengs ORCID iD
Author: Urvashi D. Heramun ORCID iD

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