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

Abstract

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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