AL-27 NMR RELAXATION STUDIES OF MOLTEN-SALTS CONTAINING ETHYLALUMINUM DICHLORIDE

The microdynamics of room temperature molten salts containing EtAlCl2 are examined by Al-27 NMR relaxation methods as a function of melt composition and temperature. The melts examined include neat EtAlCl2 and mixtures of EtAlCl2, 1-ethyl-3-methylimidazolium chloride (MEICl) and AlCl3. Information obtained from this study indicates interactions between EtAlCl2 containing species (EtAlCl3- and EtAlCl2 dimers) and MEICl or AlCl3. Quadrupole coupling constants obtained for Al-27 using the extreme narrowing condition compare favorably with those obtained previously by the dual spin probe (DSP) method.