Unusual temperature-dependence of the 19F nuclear magnetic resonance spectra of compounds containing the –CF
N– unit
Abstract
The sharpening of the room-temperature spectrum due to CF
N– in CF3N:CF·CF2Cl as the temperature is lowered may be due to natural decoupling of 14N–19F coupling resulting from more effective quadrupolar relaxation of the nitrogen nucleus at the lower temperatures.
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N– unit