Question

Determine structure are most electron rich carbon by hyperconjugation

Answer 1

In organic chemistry, hyperconjugation is the interaction of the electrons in a sigma orbital(e.g. C–H or C–C) with an adjacent empty (or partially filled) non-bonding or antibonding σ or π orbital to give an extended molecular orbital. Increased electron delocalization associated with hyperconjugation increases the stability of the system. Only electrons in bonds that are in the β positioncan have this sort of direct stabilizing effect—donating from a sigma bond on an atom to an orbital in another atom directly attached to it. However, extended versions of hyperconjugation (such as double hyperconjugation]) can be important as well. The Baker–Nathan effect, sometimes used synonymously for hyperconjugation,is a specific application of it to certain chemical reactions or types of structures.



Hyperconjugation: a stabilizing overlap between a pi orbital and a sigma orbital. Ref. McMurry