In the study of conformational isomerism, the gauche effect is an atypical situation where a gauche conformation (groups separated by a torsion angle of approximately 60°) is more stable than the anti conformation (180°). There are both steric and electronic effects that affect the relative stability of conformers.
In the study of conformational isomerism, the gauche effect is an atypical situation where a gauche conformation (groups separated by a torsion angle of approximately 60°) is more stable than the anti conformation (180°). There are both steric and electronic effects that affect the relative stability of conformers.
Source: Wikipedia "Gauche effect" · CC BY-SA 4.0
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