Chapter 1, Problem 19PP

Interpretation Introduction

Interpretation: Resonance structures that would result from moving the electrons by indicated curved arrowsfor the given structures are to be drawn.

Concept Introduction:

Resonating structures are structures that have more than one equivalent Lewis structure for the same molecule or ion.

Resonance structures have existence in paper only, thus, they are not real structures.

According to the convention, these structures are connected by double-headed arrows ($\stackrel{}{\leftrightarrow }$)

Movement of electrons is represented by curved arrows.

The energy of any contributing structure is higher than the energy of the resonance hybrid.

For equivalent resonating structures, the resonance stabilization is large.