Eclipsed Hydrogens for Boat Conformation of Cyclohexanes

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Jessica Chern 1H
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Joined: Sat Jul 09, 2016 3:00 am

Eclipsed Hydrogens for Boat Conformation of Cyclohexanes

Postby Jessica Chern 1H » Wed Mar 15, 2017 4:55 pm

On page 113 of the Intro to Organic Chemistry book, when talking about the boat conformation for cyclohexane, it says that "the four C-H bonds on the sides are eclipsed." Which C-H bonds is this referring to? It says "side," but looking at the diagram of the molecule, I would have thought it would be the four hydrogens that are sticking straight down that are eclipsed and have torsional strain.

Christopher Liu 3J
Posts: 20
Joined: Fri Jul 15, 2016 3:00 am

Re: Eclipsed Hydrogens for Boat Conformation of Cyclohexanes

Postby Christopher Liu 3J » Wed Mar 15, 2017 5:15 pm

I assume it's talking about the "square" of carbons and its hydrogens. So, it would be the bottom four carbons. If you look down each pair of carbons, you will see they have two eclipsed hydrogen atoms in this formation, resulting in a total of four.


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