Sketch a graph of potential energy versus dihedral angle about the
Sketch a graph of potential energy versus dihedral angle about the C-C bond of 1,2-dichloroethane. Show the energy differences on your graph and label each minimum and maximum with the appropriate conformation of 1,2-dichloroethane. Note: The anti conformation of 1,2-dichloroethane is 4.81 kJ/mol more stable than the gauche conformation. The two energy barriers (measured relative to the energy of the gauche conformation) for C-C bond rotation are 21.5 kJ/mol and 38.9 kJ/mol.