Half Chair Vs Boat
That's the back of the chair, this is where you would sit down on the chair, and i guess the back of your calves would go against here. your knees would sit on it someplace like that. that's called the chair configuration.. Chair and boat shapes for cyclohexane. created by sal khan. watch the next lesson: cyclohexane ring flip and boat conformation - duration: 16:08. leah4sci 18,993 views. 16:08.. 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..
In the illustration above, starting from the chair conformation, the half-chair form depicted arises from moving the left-hand-most carbon of the chair form , which is puckered down, upward into the plane of the four coplanar atoms.. Because of the hydroxyl groups and oxygen atoms, there are 38 distinct conformations (2 chairs, 6 boats, 6 skew-boats, 12 half-chairs, and 12 envelopes). from wikipedia : obviously, in less-substituted cyclohexane, there are fewer unique shapes, but it helps to see the different ring-puckering or pseudo-rotation shapes.. Carbohydrate conformation refers to the overall three-dimensional structure adopted by a carbohydrate in the pyranose system five conformers are possible: chair (c), boat (b), skew (s), half-chair (h) or envelope (e). in all cases there are four or more atoms that make up a plane..
