Trans-1,2-Difluorocyclohexane

1,2-disubstituted cyclohexanes are trans if both substituents are in equatorial or axial positions. The diaxial conformation is much higher in energy than the diequatorial conformation which is shown here. Note that the fluorines are gauche. Take a good look and ask yourself whether this molecule is chiral. Are there any chiral centers? Any mirror planes?


Figure. The RHF/6-31G* optimized structure of trans-1,2-difluorocyclohexane.