Chapter 14.SE, Problem 49AP

Interpretation Introduction

Interpretation:

The approximate UV absorption maxima at which 2,3-dimethyl-1,3,5-hexatriene is expected to absorb is to be stated if 1,3,5-hexatriene has a UV absorption maximum of 258 nm.

Concept introduction:

A shift in UV absorption maxima to higher wavelengths is observed with increase in conjugation and/or with increase in the number of alkyl substituents.

To state:

The approximate UV absorption maxima at which 2,3-dimethyl-1,3,5-hexatriene is expected to absorb if 1,3,5-hexatriene has a UV absorption maximum of 258 nm.