Identifikace komplexů hliníku v uhlí metodou NMR tuhé fáze

Abstract

On the basis of solid-state NMR measurements organoaluminium complexes in coal substance are presented. Solid extracts obtained from the Ostrava-Karvina bituminous coal and from the North Bohemian brown coal were used. It was found that the significant chemical shift at 13.5-14.8 ppm corresponds to that obtained for the hexaphenolatoaluminium complex (14.2 ppm). This shift can be also ascribed to the Al-naphthalocyanine complex. Hence, organoaluminium compounds coordinated to six oxygens are present in coal substance.