Chapter 10, Problem 10.29QP

Interpretation Introduction

Interpretation:

Sigma $\left(\text{σ}\right)$ and pi $\left(\text{π}\right)$ bonds have to be distinguished.

Concept Introduction:

$\text{σ}$-bonds are covalent bonds formed by the end-to-end overlapping of two atomic orbitals. In the $\text{σ}$-bonding, the electronic concentration will be only within the bond and because of that the $\text{σ}$-bond is being a localized bond.

$\text{π}$-bonds are also covalent bonds formed by the sideways overlapping of two atomic orbitals. In the $\text{π}$-bonding, the electronic concentration will be above and below the plane of the $\text{σ}$-bond and because of that the $\text{π}$-bond is being a delocalized bond.