REACTION OF THE FLUORIDE ANION WITH ACETONITRILE, CHLOROFORM AND METHYLENE-CHLORIDE

19F and 1H NMR spectra of the F- anion in CH3CN and CD3CN solutions show that the F- anion can abstract a proton from CH3CN resulting in the slow formation of the bifluoride and acetonitrile anions. With chloroform or methylene chloride the F- anion undergoes halogen exchange reactions at room temperature. These reactions demonstrate the exceptional reactivity of the free fluoride anion when present as a highly soluble salt. © 1990.