Chapter 15, Problem 15.74AP

Interpretation Introduction

Interpretation:

The explanation for the fact that the value of $\text{p}{K}_{\text{a}}$ of $1,\text{3-cyclopentadiene}$ and pyrrole is different from the expected value of ${\text{R}}_{\text{2}}\text{NH}$ and ${\text{R}}_{\text{2}}{\text{CH}}_2$ is to be stated.

Concept introduction:

A molecule that is cyclic, planar, completely conjugated and follows Hückel’s rule is classified as an aromatic compound. Aromatic compounds follow Hückel’s rule of $\left(4n+2\right)\text{π}$ electrons. A ring which contains six or ten $\text{π}$ electrons acts as an aromatic ring. The stability of a compound depends upon the number of resonating structures.