Question

The total number of conformations of cyclohexane is

Answer 1

Answer:

  There are two equivalent chair conformations of cyclohexane in rapid equilibrium, all twelve hydrogens have 50% equatorial and 50% axial character

Explanation:

1. Cyclohexane has a non-polar structure that makes it almost free from ring strain. The most important conformations that it can have included chain conformation and boat conformation. The chair conformation is more stable than the boat conformation.
2. The boat conformation can sometimes be more stable than it is usually, by a slight rotation in the C-C bonds and is called the skew boat conformation. Nevertheless, the chair conformation is the most stable cyclohexane form.
3. A Conformation of cyclohexane can refer to many 3-Dimensional shapes assumed by a cyclohexane molecule without disturbing the integrity of the chemical bonds in it.
4. Cyclohexane is the most widely occurring ring in compounds of natural origin. Its prevalence, undoubtedly a consequence of its stability, makes it the most important of the cycloalkanes. The deviation of bond angle in cyclohexane molecules is more than in cyclopentane, it should be more strained and less reactive than cyclopentane. But actually, it is less strained and more stable than cyclopentane.
5. In order to avoid the strain, cyclohexane does not exist as a planar molecule as expected. It exists as a puckered ring that is non-planar and the bond angles are close to tetrahedral bond angles. Two such puckered rings for cyclohexane are called the boat and chair conformations.

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