What is boat form of cyclohexane?

The Boat Conformation of cyclohexane is created when two carbon atoms on opposite sides of the six-membered ring are both lifted up out of the plane of the ring creating a shape which slightly resembles a boat. The boat conformation is less stable than the chair form for two major reasons.

Why is methylcyclohexane more stable than axial methylcyclohexane?

6.10A). Because diastereomers have different energies, one form is more stable than the other. Equatorial methylcyclohexane is more stable than axial methylcyclohexane. In fact, it is usually the case that the equatorial conformation of a substituted cyclohexane is more stable than the axial conformation.

What is the boat conformation?

Boat conformation: A six-membered ring conformation in which atoms 1, 2, 4, and 5 are coplanar, and atoms 3 and 6 are bent out of the plane in the same direction.

Are wedges axial or equatorial?

In all cases, a substituent that was marked by a wedge or a dash in a 2-D drawing will remain that way, but in the chair conformation, the wedge might means axial “up” instead of equatorial “up” depending on whether it is a right- or left-handed chair.

Is axial or equatorial more favorable?

For a 50:50 mixture (K = 1) the energy difference ΔG would be zero. For methylcyclohexane at room temperature (298 K) the 95:5 ratio of equatorial to axial conformers translates to an energy difference of 1.70 kcal/mol. In other words, the equatorial conformer is more stable by 1.70 kcal/mol.

Which structure is the best representation for methylcyclohexane Why?

The most stable conformation of methylcyclohexane is the chair conformation in which the methyl group is equatorial.

Do wedges go up or down?

If both substituents are on a wedge, then you can call them “up”, and on those carbons you would draw them both “up”. Up/down does not correlate to equitorial/axial. Check it out here. Both are on wedges, both are “up” then, and when drawing the chair conformation, one is axial and another equitorial.

What is chair and boat configuration?

The terms chair conformation and boat conformation apply mainly to cyclohexane. The key difference between chair and boat conformation is that a chair conformation has low energy, whereas a boat conformation has high energy. Therefore, the chair conformation is more stable than boat conformation at room temperature.

Which is more stable wedge or dash?

In a wedge dash structure is the solid wedge more stable than the dashed wedge .

Are wedges equatorial or axial?

What is a chair flip?

Ring flip (chair flip): The conversion of one cyclohexane chair conformation into another, by rotation around single bonds. Cyclohexane ring flip causes axial substituents to become equatorial, and equatorial substituents to become axial.