for the two carbenes and can be related to the pKa's of the pyridines. Steric interactions between the carbenes and several substituted prydines result in an apparent decrease in the reaction enthalpy from that predicted by the pyridenes pKa's.
通过光声量热法测定甲基和苯基
氯卡宾与取代的
吡啶络合的反应焓。焓是两个卡宾相似,可与的pK一个S中的
吡啶的”。的卡宾和几个取代prydines之间的空间相互作用导致在反应焓与由pyridenes的pK预测的明显减少一的。