Chapter 23, Problem 23.135SP

Interpretation Introduction

Interpretation:

“The resonance structure for the DNA base guanine must be shown and the hybridization for each atom in the ring in the resonance structure must be given”

Concept introduction:

• In resonance, the lone pair of electrons in $p$ orbital of one atom overlaps with another $p$orbital of other atoms and gives conjugated resonance structure.
• When all atoms are participated in resonance structure then they are $s{p}^2$ hybridized and forms an aromatic conjugate ring system.

Given:

The structure of the DNA base guanine has been given.