Solvolysis of the difluoro(1,10-phenantholine)boronium cation in DMSO: A11B and19F NMR study

Abstract The salts [LLBF2]+ BF4−, where LL = 1,10-phenantholine and 2,2′-bipyridine, undergo solvolysis in DMSO solution. The rate of solvolysis of the difluoro(1,10-phenantholine)boronium cation may conveniently be followed by means of11B and19F NMR. In contrast, the difluoro(2,2′-bipyridine)boronium cation appears to be rapidly solvolysed on dissolution, highlighting the differences in stabilities of these two boronium cations.