1-Chloromethyl-4-fluoro-1,4-diazoniabicyclo[2.2.2]octane bis(tetrafluoroborate)
Potassium (2,4-dimethylphenyl)trifluoroborate
Potassium 3-thiophenetrifluoroborate
Potassium (benzamidomethyl)trifluoroborate