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Combining PGSE NMR with homonuclear dipolar decoupling
KTH, Superseded Departments, Chemistry.ORCID iD: 0000-0002-6524-1441
KTH, Superseded Departments, Chemistry.ORCID iD: 0000-0002-0231-3970
2000 (English)In: Journal of magnetic resonance, ISSN 1090-7807, E-ISSN 1096-0856, Vol. 144, no 1, 142-149 p.Article in journal (Refereed) Published
Abstract [en]

A new robust approach for combining multiple-pulse homonuclear decoupling and ROSE NMR is introduced for accurately measuring molecular diffusion coefficients in systems with nonvanishing static homonuclear dipolar couplings. Homonuclear decoupling suppresses dipolar dephasing during the gradient pulses but its efficiency and scaling factor for the effective gradient vary across the sample because of the large variation of the frequency offset caused by the gradient. The resulting artifacts are reduced by introducing a slice selection scheme. The method is demonstrated by F-19 PGSE NMR experiments in a lyotropic liquid crystal.

Place, publisher, year, edition, pages
2000. Vol. 144, no 1, 142-149 p.
Keyword [en]
PGSE NMR, homonuclear dipolar decoupling, slice selection, molecular diffusion, liquid crystal, nuclear-magnetic-resonance, multiple-pulse nmr, pentadecafluorooctanoate-water-system, studying translational diffusion, gradient spin-echo, solid-state nmr, liquid-crystals, self-diffusion, field gradients, spectroscopy
Identifiers
URN: urn:nbn:se:kth:diva-19749ISI: 000087004900018OAI: oai:DiVA.org:kth-19749DiVA: diva2:338441
Note
QC 20100525Available from: 2010-08-10 Created: 2010-08-10 Last updated: 2017-12-12Bibliographically approved

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Dvinskikh, Sergey V.Furo, Istvan

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