conformational analysis

Conformational analysis examines the different spatial arrangements of atoms in a molecule that arise from rotation around single covalent bonds. These arrangements, known as conformations, can have varying levels of potential energy due to attractive or repulsive forces between atoms.1

In molecules like ethane, rotation around the carbon-carbon bond leads to different conformations, such as staggered and eclipsed forms. The staggered form is generally more stable because it minimizes electron repulsion between bonds. However, for a conformation to be considered a distinct isomer, it must represent an energy minimum and be stable enough to be isolated, which is not always the case for simple molecules. Ring compounds, such as cyclohexane, can exhibit a richer set of conformational isomers, like the chair and boat forms, with some being more stable than others.21