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 ob tained for fluoro-substituted aromatics and for aromatic nitrogen hete rocycles, respectively, adsorbed on silica and alumina, where line nar rowing 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 me asured in natural abundance.