Chair Conformations

Ring Flip Rules

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Chair Conformations: Free Draw

Drag non-H substituents onto the bare flipped chair skeleton. Ghost stubs appear as you hover.

Substituents:
Starting Chair
Ring Flip

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Common Questions

What is a chair conformation?

A chair conformation is the most stable 3D shape of cyclohexane, where alternating carbons point up and down, minimizing angle strain and torsional strain. It looks like a reclining chair when viewed from the side.

What is the difference between axial and equatorial positions?

Axial bonds point straight up or down, perpendicular to the ring plane. Equatorial bonds point roughly outward along the ring equator. Axial and equatorial positions alternate around the ring and swap during a ring flip.

How do you draw a cyclohexane chair?

Start with two parallel lines offset vertically (the "seat" and "back" of the chair). Connect them with angled lines to form the six-membered ring. Each carbon gets one axial bond (up or down) and one equatorial bond (angled outward).

What is a ring flip?

A ring flip (chair-chair interconversion) converts one chair conformation to another by moving up carbons down and down carbons up. All axial substituents become equatorial and vice versa. No bonds are broken.