Chapter 1, Problem 1.10YT

Interpretation Introduction

Interpretation:

Necessary curved arrows to go from the resonance structure on the left to the resonance structure on the right are to be drawn.

Concept introduction:

In resonance, delocalization of $\text{π}$ electrons takes place.

A curved arrow can originate from a lone pair of electrons or from the center of a covalent double or triple bond to indicate the specific pair of electrons that is being moved.

The arrow points to an atom if the electrons being moved become a lone pair. Otherwise, the arrow points to the center of an existing single or double bond to represent the formation of a new double or triple bond there.

Each curved arrow illustrates the movement of an electron pair.