High-speed magic-angle spinning 13C MAS NMR spectra of adamantane: self-decoupling of the heteronuclear scalar interaction and proton spin diffusion.


We have investigated the carbon line shape of solid adamantane under high-speed magic-angle sample spinning (MAS) acquired without proton decoupling. The CH-group shows a spinning-speed-dependent line broadening while the CH2-group consists of a spinning-speed-independent sharp component and a spinning-speed-dependent broader part. These phenomena can be… (More)


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