The reason as to why S 11 = S 22 = S 33 = S 44 in the Hückel approximation of the π orbitals of butadiene is to be justified in words. Concept introduction: Hückel theory deals with the conjugated systems. In this theory, the π and σ bonds are treated separately. It states that the σ bonds form the overall structure of the molecule and the π bonds spread out over the carbon atoms. In Hückel approximation, the π orbitals are assumed to be the combination of the atomic orbitals of the carbon atoms which are involved in conjugation of π bonds.

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Chapter 15, Problem 15.46E

Interpretation Introduction

Interpretation:

The reason as to why S11=S22=S33=S44 in the Hückel approximation of the π orbitals of butadiene is to be justified in words.

Concept introduction:

Hückel theory deals with the conjugated systems. In this theory, the π and σ bonds are treated separately. It states that the σ bonds form the overall structure of the molecule and the π bonds spread out over the carbon atoms. In Hückel approximation, the π orbitals are assumed to be the combination of the atomic orbitals of the carbon atoms which are involved in conjugation of π bonds.

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