Problems and exercisesCyclohexane
1. Why is it not planar?
If cyclohexane were planar, what would its internal angle be? What two problems would that structure have?
2. Axial and equatorial
How many axial and how many equatorial hydrogens does the cyclohexane chair have? What happens to them when the chair inverts?
3. Inversion profile
Arrange in order of increasing energy: chair, boat, twist boat and the transition state of the inversion.
4. Newman
In the Newman projection of the chair, viewed along two parallel C–C bonds, how are the hydrogens on neighbouring carbons arranged?