Which is more stable carbonation ? $("CH"_3)_2"C"^"+""-F"$ or $("CH"_3)_2"C"^"+""-CH"_3$ And why ?

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Answer 1 · 2017-01-13T21:24:47

The more stable carbocation is $("CH"_3)_2 stackrelcolor(blue)("+")("C")"-CH"_3$ .

The difference is in the $"F"$ and the $"CH"_3$ groups.

$"F"$ is an electron withdrawing group, and $"CH"_3$ is an electron donating group.

Donating electrons to a carbocation reduces its charge and makes it more stable.

∴ The second carbocation is more stable.

Which is more stable carbonation ? ("CH"_3)_2"C"^"+""-F"("CH"_3)_2"C"^"+""-F" or ("CH"_3)_2"C"^"+""-CH"_3("CH"_3)_2"C"^"+""-CH"_3 And why ?