The concept of steric attractions is discussed in terms of the individual contributions of repulsive and attractive terms. Examples are given in which the attractive term dominates in the equilibrium distributions of conformers, the "more crowded" confromer is lower in energy. A molecular mechanics experiment is described that emphasizes the importance of steric attractive forces in defining the steric energy of two conformations, extended vs folded, of of ethylene glycol distearate.
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