Chapter 4, Problem 4.14YT

Interpretation Introduction

Interpretation:

Using a molecular modeling kit, a molecule of cyclopentane in its envelope conformation is to be built. It is to be viewed so that it appears as shown on the left in Figure 4-18 and the atoms are to be moved as indicated in the figure. The $\text{C-C}$ bonds that rotate the most are to be identified, and those bonds are to be circled on the drawing on the left in Figure 4-18.

Concept introduction:

In ring structures, pseudorotation takes place. Pseudorotation occurs by partial rotations about the $\text{C-C}$ bonds.