When to Determine Chair Conformation

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Nathan Sanchez 1F
Posts: 12
Joined: Sat Jul 09, 2016 3:00 am

When to Determine Chair Conformation

Postby Nathan Sanchez 1F » Sun Mar 19, 2017 2:20 pm

When do you know that the chair, boat, or flip chair is the most table conformation to draw?

Jenny2G
Posts: 31
Joined: Wed Sep 21, 2016 2:56 pm

Re: When to Determine Chair Conformation

Postby Jenny2G » Sun Mar 19, 2017 2:29 pm

Chair will always be the most stable conformation because it requires less energy. The boat conformation needs more energy due to the flagpole interaction and the pairs of eclipsed Rs.

Jessica Pak 2F
Posts: 10
Joined: Wed Sep 21, 2016 2:55 pm

Re: When to Determine Chair Conformation

Postby Jessica Pak 2F » Sun Mar 19, 2017 10:12 pm

Both chair conformations (since they are the same thing) are equally the most stable for cyclohexane. Differences in stability is affected when adding substituents onto 1- and 4-carbons on the chair, where it is preferred to be positioned as equatorial on both carbons instead of axial.

William Weng 2L
Posts: 10
Joined: Tue Oct 04, 2016 3:01 am

Re: When to Determine Chair Conformation

Postby William Weng 2L » Mon Mar 20, 2017 2:26 pm

It will normally be stated in the question, otherwise, all forms of confirmation will be given credits.


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