How do you know if a substituent is axial or equatorial?
Axial groups alternate up and down, and are shown “vertical”. Equatorial groups are approximately horizontal, but actually somewhat distorted from that, so that the angle from the axial group is a bit more than a right angle — reflecting the common 109 degree bond angle.
What is equatorial conformation?
Equatorial: In cyclohexane, a bond which is perpendicular to the axis of the ring (i.e., the bond lies along the equator of the chair), or a group attached by such a bond. A = axial positions; E = equatorial positions. Related terms: Chair conformation, stereochemistry, axatorial, equial.
Is equatorial or axial more stable?
A conformation in which both substituents are equatorial will always be more stable than a conformation with both groups axial.
What is chair and boat conformation of glucose?
The conformation for a molecule of glucose can be a boat form or a chair form, but this completely depends upon the structure and components that the molecule has. But since the boat conformation of glucose in not favorable energetically, it can be concluded that the chair form of a glucose molecule is most stable.
How do you know which chair conformation is more stable?
To Determine Chair Conformation Stability, Add Up The A-Values For Each Axial Substituent. The Lower The Number, The More Stable It is.
What is axial and equatorial in chair conformation?
Axial bonds alternate up and down, and are shown “vertical”. Equatorial groups are approximately horizontal, but actually somewhat distorted from that (slightly up or slightly down), so that the angle from the axial group is a bit more than a right angle — reflecting the common 109.5o bond angle.
What is equatorial and axial?
The key difference between axial and equatorial position is that axial bonds are vertical while equatorial bonds are horizontal. A conformation is a shape a molecule can take due to the rotation around one or more of its bonds.