19F-decoupling of half-integer spin quadrupolar nuclei in solid-state NMR: Application of frequency-swept decoupling methods

► Heteronuclear spin decoupling of 19F (I=1/2) from 23Na (I=3/2) in the solid state. ► Decoupling efficiency is compared for several multi-pulse decoupling schemes. ► 3Q-filtered 23Na signal is used as a sensitive benchmark for the comparison. ► Best 19F decoupling is achieved with the SWf-TPPM and SWf-SPINAL schemes.