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Advanced solid-state NMR spectroscopy of strongly dipolar coupled spins under fast magic angle spinning
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1998
Year
EngineeringMagnetic ResonanceSpin DynamicSpin PhenomenonQuantum EngineeringMagnetismNuclear Quadrupole ResonanceElectron Paramagnetic ResonanceBiophysicsPhysicsLow-dimensional SystemsMagic Angle SpinningPulse TechniquesSpintronicsSpectroscopyCondensed Matter PhysicsApplied PhysicsCommercial Mas ProbesDouble ResonanceDynamic Nuclear PolarizationMedicine
Continuing recent progress in the design of magic angle spinning (MAS) equipment now allows spinning frequencies of up to 35 kHz in commercial MAS probes. Such high frequencies make MAS an important tool for the manipulation of strong dipolar couplings, in particular when supplemented by suitable pulse techniques. This article describes convenient and simple strategies for designing techniques that are suited to application under such conditions. The strategies are then applied to widely used pulse techniques for line narrowing, recoupling of spin interactions, and multiple-quantum NMR spectroscopy. Representative results illustrate the usefulness of the techniques. ©1998 John Wiley & Sons, Inc. Concepts Magn Reson 10: 99–128, 1998