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Pulse-assisted homonuclear dipolar recoupling of half-integer quadrupolar spins in magic-angle spinning NMR
KTH, School of Chemical Science and Engineering (CHE), Chemistry, Inorganic Chemistry.
2005 (English)In: Chemical Physics Letters, ISSN 0009-2614, E-ISSN 1873-4448, Vol. 410, no 1-3, 24-30 p.Article in journal (Refereed) Published
Abstract [en]

We demonstrate numerically and experimentally that zero-quantum homonuclear dipolar recoupling techniques employing rotor-synchronized 180 degrees pulses, previously introduced for spin-1/2 applications, are useful also for magnetization transfers between half-integer quadrupolar nuclei in rotating solids. The recoupling sequences are incorporated as mixing periods in two-dimensional experimental protocols, that correlate either single-quantum coherences of coupled spins, or triple-quantum with single-quantum coherences for improving spectral resolution. We present Na-23 and Al-27 NMR experiments on powders of sodium sulphite [Na2SO3], YAG [Y3Al5O12] and a synthetic chlorite mineral [Mg4.5Al3Si2.5O10(OH)(8)].

Place, publisher, year, edition, pages
2005. Vol. 410, no 1-3, 24-30 p.
National Category
Chemical Sciences
URN: urn:nbn:se:kth:diva-37908DOI: 10.1016/j.cplett.2005.04.030ISI: 000230330600005ScopusID: 2-s2.0-20444496119OAI: diva2:435576
QC 20110819Available from: 2011-08-19 Created: 2011-08-19 Last updated: 2011-08-19Bibliographically approved

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