CHM 2210   Chapter 4           Name: ________________________

 

Part A: Newman Projections of  Conformations:   10 points

 

  1. Draw a Newman Projection of the anti conformation of 1,2 Dichloroethane.

 

 

 

 

 

 

2. Draw a Newman Projection of the gauche conformation of 1,2 Dichloroethane.

 

 

 

 

 

 

 

3. Draw the Newman Projection of the least stable conformation of 1,2 Dichloroethane.

 

 

 

 

 

Consider the conformation of 2-Methylbutane show below to answer the following questions:

___4. Which structure has two gauche interactions?

 

___5. Which structure represents the most stable conformation of 2-Methylbutane

 

___6. Which structure represents the least stable conformation of 2-Methylbutane