with the relative constants in water. The effect of IL composition is discussed for a series of fixed IL anions and fixed IL cations. Finally, the sensitivity of the proton transfer reaction to the electronic effects of the substituent groups on the pyridine ring was quantified by applying the Hammett equation. A more marked levelling effect on the base strength was observed in ILs than in water. The
吡啶和
三氟乙酸之间质子转移反应的平衡常数是在不同阳离子阴离子组成的室温
离子液体(ILs)中测量的。根据Fuoss方程校正了离子对形成的实验平衡常数。计算出的形成游离离子的平衡常数作为IL溶液中碱强度的定量度量,并与
水中的相对常数进行比较。针对一系列固定的IL阴离子和固定的IL阳离子,讨论了IL组成的影响。最后,通过应用哈米特方程来量化质子转移反应对
吡啶环上取代基的电子效应的敏感性。与
水相比,在
离子液体中观察到的对基础强度的更显着的流平效果。