# Why is a carbocation sp^2 hybridized around the central carbon?

Jan 22, 2017

This is a simple consequence of $\text{VSEPR........}$
$\text{VSEPR}$, $\text{valence shell electron pair repulsion theory}$, proposes that electron pairs around a central atom arrange themselves in the shapes of the Platonic solids, the which arrangement minimizes electrostatic repulsion between the bonding and lone pairs.
Around the carbon in ""^+CR_3, there are 3 bonding electron pairs, and thus the bond angle $\angle R - C - R$ is ${120}^{\circ}$. The boron halides and alkyls, are isoelectronic with ""^+CR_3, tho here $B {R}_{3}$ is neutral.