Organic Chemistry
Organic Chemistry
12th Edition
ISBN: 9781118875766
Author: T. W. Graham Solomons, Craig B. Fryhle, Scott A. Snyder
Publisher: WILEY
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Chapter 14, Problem 23P
Interpretation Introduction

Interpretation:

The aromatic nature of pentalene and heptalene needs to be explained on the basis of Huckel’s rule.

Concept introduction:

In accordance to the Huckel’s rule, aromatic compounds contain a planar ring and have a conjugated pi system with (4n+2)π lectrons, where n=0,1,2,3,...

Aromatic compounds contain conjugated pi bonds.

All the atoms in the ring have an unhybridized p orbital.

Antiaromatic compounds contain (4n)π lectrons. They are very unstable and are highly reactive.

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