Torsional strain

Definition

Torsional strain arises from the resistance to twisting of the molecular bonds in a molecule, observed when atoms on adjacent atoms are rotated about their bond axis. It is most commonly discussed in the context of ethane conformations, where varying degrees of this strain affect the molecule's stability.

Related terms

Conformational Isomerism: Isomerism resulting from rotation around single bonds, leading to different spatial orientations of atoms but not altering the fundamental structure of the molecule.

Staggered Conformation: A conformation where atoms or groups are positioned with maximum separation around a carbon-carbon single bond, minimizing torsional strain and thus more energetically favorable.

Eclipsed Conformation: A conformation where atoms or groups on adjacent carbons align with minimal separation, maximizing torsional strain and resulting in a less stable arrangement compared to staggered conformations