Srinivasan S
Last Activity: 4 Years ago
Any charged species, carbocation or carbanion, can be stable to the extent in which the charge is delocalized over full molecule.
For a carbocation, the delocalization occurs due to both +I effect of alkyl groups as also hyperconjugation, which is higher in order tert > sec > primary. so the order of stabiity is also same, tert > sec > primary carbocation.
In a carbanion, with added alkyl groups attached to the charged C, which are all +I donating, there is increased concentration of charge & no delocalization. This makes stability of tert