Wednesday, May 22, 2019

organic chemistry - Relative stabilities of tropylium and cyclopropenyl carbocations


How can the stabilities of the tropylium and cyclopropenyl carbocations be compared?



Structures of carbocations


Both are aromatic according to Hückel's rule. I think that to compare the stabilities, we must either count the number of resonance structures, or perhaps we could say that cyclopropenyl is less stable due to angle strain. Am I on the right track?




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