2,7-DIMETHYL-BENZO[LMN][3,8]PHENANTHROLINIUM BISTETRAFLUOROBORATE N,N'-DIMETHYL-2,7-DIAZAPYRENIUM DIFLUOROBORATE 2,7-Dimethyl-2,7-dihydrobenzo[lmn][3,8]phenanthrolin-2-ium hydrogen tetrafluoroborate N,N'-dimethyl-2,7-diazapyrene bis(tetrafluoroborate) 2,7-Dimethylbenzo[lmn][3,8]phenanthroline-2,7-diium tetrafluoroborate N,N'-dimethyl-2,7-diazapyreneditetrafluoroborate N,N'-Dimethyl-2,7-Diazapyrenium bistetrafluoroborate