Chapter 4.10, Problem 19P

Consider rotation around the carbon-carbon bond in $\text{1, 2-dichloroethane}$

${\text{(ClCH}}_{\text{2}}{\text{CH}}_{\text{2}}\text{Cl)}$.

a. Using Newman projections, draw all of the staggered and eclipsed conformations that result from rotation around this bond.

b. Graph energy versus dihedral angle for rotation around this bond