Equatorial - Axial (larger view)
Axial - Equatorial (larger view)
trans-1,3-Dimethylcyclohexane The energy difference between the two chair conformations of trans-1,3-dimethylcyclohexane is 0 kcal/mol. The two chair conformations are not mirror images. They are identical. Move the Jmol structures to confirm this point. The magenta methyl in one conformer matches the green one in the other conformation. The absolute energy of the conformers is 1.8 kcal/mol because of the single axial methyl group.