High-resolution solid state F-19 and N-15 MAS NMR spectra of fluoroaromatics and aromatic nitrogen heterocycles physisorbed on silica and alumina

High-resolution F-19 and N-15 solid State MAS NMR spectra have been obtained for fluoro-substituted aromatics and for aromatic nitrogen heterocycles, respectively, adsorbed on silica and alumina, where line narrowing is due to the high mobility of these systems on the surface of the porous materials. F-19,F-19 COSY, F-19,C-13 HETCOR, and F-19 --> C-13 INEPT experiments were successfully performed, and N-15 NMR was measured in natural abundance.