Chair Boat Chair. Click the structures and reaction arrows to view the 3D models and animations respectively. Cyclic alkanes can also interconvert between their conformers by rotation of the single carbon to carbon bonds. Next page: Structure and conformations of decalins. Back to stereochemistry home
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How to Draw Cyclohexane Chair Conformation - Part 1 (3D ...
This video explores the 3-D structure of cyclohexane in preparation for learning how to draw a cyclohexane chair conformation. Click here to continue to Par...
Let's investigate in more detail some of the important features of the 3D shape of cyclohexane. The most stable conformation of cyclohexane is the chair form shown to the right. The C-C-C bonds are very close to 109.5 o, so it is almost free of angle strain. It is also a fully staggered conformation and so is free of torsional strain.
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Drawing Chair Conformations and Ring Flips for Cyclohexane ...
Studying chair conformations is likely one of the trickiest visual topics in organic chemistry, perhaps second only to Fischer projections. Not only are you required to learn a 3-dimensional concept, but you also have to manipulate that 3-D molecule on 2-dimensional paper.
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How to Draw the Chair Conformation of Cyclohexane - dummies
A cyclohexane chair contains two kinds of hydrogens — axial hydrogens and equatorial hydrogens. Axial hydrogens are those hydrogens that stick straight up or straight down parallel to an imaginary axis through the chair; equatorial hydrogens are hydrogens that stick out along the equator of the chair. Both types are shown here.
Cyclohexane chair flip (ring inversion) reaction via boat conformation (4). Structures of the significant conformations are shown: chair (1), half-chair (2), twist-boat (3) and boat (4). When ring flip happens completely from chair-to-chair, hydrogens that were previously axial (blue H in upper-left structure) turn equatorial and equatorial ...
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Conformation of Cyclohexane - Chair, Twist Boat, Boat, and ...
The phenomenon wherein the cyclohexane molecule undergoes a conversion from one chair form to a different chair form is called chair flipping (or ring flipping). An illustration detailing chair flipping is provided below. When chair flipping occurs, axial carbon-hydrogen bonds become equatorial and the equatorial carbon-hydrogen bonds become axial.