1 H-Detected quadrupolar spin-lattice relaxation measurements under magic-angle spinning solid-state NMR.
CHEMICAL COMMUNICATIONS(2019)
摘要
Proton detection and phase-modulated pulse saturation enable the measurement of spin-lattice relaxation times of "invisible" quadrupolar nuclei with extensively large quadrupolar couplings. For nitrogen-14, efficient cross-polarization is obtained with a long-duration preparation pulse. The experiment paves the way to the characterization of a large variety of materials containing halogens, metals and more.
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关键词
Nuclear Quadrupole Resonance,Solid-State NMR,Magnetic Phase Transitions,NMR Spectroscopy,Protonic Conduction
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