Precise measurement of (1)H 90 degrees pulse in solid-state NMR spectroscopy for complex and heterogeneous molecular systems.


The 90 degrees pulse calibration is essential in NMR spectroscopy to prevent artefacts in the liquid state or to enhance cross-polarization efficiency in the solid state. We verified pulse-angle (PA) errors due to circuit impedances in solid-state NMR and suggested a possible solution to prevent the inconvenience of PA errors. The classic pulse sequences… (More)


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