Chair Half Chair Boat And Twist Conformations
This video discusses the relative stability of the chair conformations of cyclohexane such as the chair conformation, twist boat conformation, boat conformation, and the half chair conformation.. The most important shapes are called chair, half-chair, boat, and twist-boat. the molecule can easily switch between these conformations, and only two of them - chair and twist-boat - can be isolated in pure form.. The conformations that cyclohexane can assume when interconverting from one chair conformer to the other are shown in figure 2.10. to convert from the boat conformer to one of the chair conformers, one of the topmost carbons of the boat conformer must be pulled down so that it becomes the bottommost carbon..
Drawing boat and chair conformations requires identifying the c-c bonds and the bonded substituents. the chair view is the more stable cyclohexane and the boat view is less stable, but both require 3-d representations of bent bonding patterns.. Other conformations for cyclohexane do exist — and they include the boat, half-chair, and twist-boat conformations — but the most important conformation is the chair because this conformation is typically the most stable conformation.. The half chair form is least stable due to maximum strain. it is 10kcal/mol less stable than the chair form and is least stable. the twist boat conformation has less steric and torsion strain as compared to half chair conformation and it is 5.5kcal/mol less stable than the chair form..
