Does cyclohexane have gauche interactions?

Because the methyl groups are not on adjacent carbons in the cyclohexane rings gauche interactions are not possible.

What is gauche butane interaction in cyclohexane?

Reasoning by analogy with butane’s conformation, a “gauche butane” interaction is found between the substituent on one carbon and a non-hydrogen atom on an adjacent carbon. There are two gauche butane interactions in axial methyl- cyclohexane.

Which conformation of butane has a gauche interaction?

anti-staggered conformation
The anti-staggered conformation of butane has six gauche relationships. This is a gauche conformation because the methyl groups are gauche. This conformation has a total of six gauche relationships.

What is gauche interaction?

The interaction of two gauche groups is a steric hindrance. For example, gauche conformations are less stable (higher in energy) than anti conformations because of the steric strain associated with the larger groups being closer to one another (60o vs 180o).

Why is gauche more stable?

The gauche form is less stable than the anti form due to steric hindrance between the two methyl groups but still is more stable than the eclipsed formations. Such an interaction is often referred to as a gauche-butane interaction because butane is the first alkane discovered to exhibit such an effect.

Is gauche staggered or eclipsed?

In the most stable conformation, the two methyl groups lie as far apart from each other as possible with a dihedral angle of 180 degrees. This particular staggered conformation is called anti. The other staggered conformation has a Me-Me dihedral angle of 60 degrees and is called gauche.

Is gauche a Diaxial interaction?

So, the 1,3-diaxial notation is the most common way we refer to the gauche interactions of axial groups in the chair conformations. Generally, the axial conformation of a given cyclohexane is less stable than the corresponding equatorial conformation.