A quaternary ammonium salt of the formula (1)
wherein R1 is straight-chain or branched alkyl having 1 to 4 carbon atoms, R2 is straight-chain or branched alkyl having 1 to 3 carbon atoms, and X− is CF3CO2−, CF3SO3BF3−, ClBF3−, AlF4—, CF3BF3−, C2F5BF3—, N(SO2F)2−, PF6−, AsF6— or SbF6−.
一种公式为(1)的季
铵盐,其中R1是具有1到4个碳原子的直链或支链烷基,R2是具有1到3个碳原子的直链或支链烷基,X-是CF3CO2-,CF3SO3BF3-,ClBF3-,
AlF4-,CF3BF3-,C2F5BF3-,N(SO2F)2-,PF6-,AsF6-或SbF6-。