Measuring spin relaxation rates using satellite exchange NMR spectroscopy
Measuring spin relaxation rates using satellite exchange NMR spectroscopy
An approach to the indirect measurement of nuclear spin relaxation rates of low‐magnetogyric ratio (γ) nuclei using the process of satellite exchange is described. The method does not require the observation of, or even the ability to provide radio‐frequency pulses to, the low‐γ nucleus, but requires this to be scalar coupled to an NMR observable nucleus, such as 31P or 1H, making it especially attractive for the study of diamagnetic transition metals. In situations where spin relaxation is dominated by chemical shift anisotropy (CSA), the determination of the longitudinal spin relaxation time constant (T1) of the metal becomes possible, as illustrated for 195Pt and 107/109Ag.
NMR spectroscopy, relaxation, silver, structure elucidation, transition metals
7498-7502
Robertson, Gerard P.
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Odell, Barbara
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Kuprov, Ilya
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Dixon, Darren J.
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Claridge, Timothy D. W.
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18 June 2018
Robertson, Gerard P.
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Odell, Barbara
b98ac430-5f30-4ff4-9b7f-9ae66ac9a2c2
Kuprov, Ilya
bb07f28a-5038-4524-8146-e3fc8344c065
Dixon, Darren J.
51a57b12-9697-486e-bdb0-ccfe69bfac62
Claridge, Timothy D. W.
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Robertson, Gerard P., Odell, Barbara, Kuprov, Ilya, Dixon, Darren J. and Claridge, Timothy D. W.
(2018)
Measuring spin relaxation rates using satellite exchange NMR spectroscopy.
Angewandte Chemie International Edition, 57 (25), .
(doi:10.1002/anie.201801322).
Abstract
An approach to the indirect measurement of nuclear spin relaxation rates of low‐magnetogyric ratio (γ) nuclei using the process of satellite exchange is described. The method does not require the observation of, or even the ability to provide radio‐frequency pulses to, the low‐γ nucleus, but requires this to be scalar coupled to an NMR observable nucleus, such as 31P or 1H, making it especially attractive for the study of diamagnetic transition metals. In situations where spin relaxation is dominated by chemical shift anisotropy (CSA), the determination of the longitudinal spin relaxation time constant (T1) of the metal becomes possible, as illustrated for 195Pt and 107/109Ag.
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e-pub ahead of print date: 14 April 2018
Published date: 18 June 2018
Keywords:
NMR spectroscopy, relaxation, silver, structure elucidation, transition metals
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Local EPrints ID: 424851
URI: http://eprints.soton.ac.uk/id/eprint/424851
ISSN: 1433-7851
PURE UUID: a87130d4-96bc-4fef-92c9-9072767ca194
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Date deposited: 05 Oct 2018 11:50
Last modified: 16 Mar 2024 04:11
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Contributors
Author:
Gerard P. Robertson
Author:
Barbara Odell
Author:
Darren J. Dixon
Author:
Timothy D. W. Claridge
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