energy barriers

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cara_Budzinski_3D
Posts: 22
Joined: Sat Jul 09, 2016 3:00 am

energy barriers

Postby cara_Budzinski_3D » Fri Mar 17, 2017 10:47 pm

Is there an energy barrier that must be overcome for cyclobutane to move from one part of the butterfly conformation to the other, since it must briefly reassume a planar shape?

Michelle_Tan_1G
Posts: 35
Joined: Fri Jun 17, 2016 11:28 am

Re: energy barriers

Postby Michelle_Tan_1G » Fri Mar 17, 2017 10:57 pm

Yes, any shift in conformation requires an energy collision with one of the structural atoms strong enough to overcome the energy barrier.

Aliya Habib 1L
Posts: 20
Joined: Fri Sep 25, 2015 3:00 am

Re: energy barriers

Postby Aliya Habib 1L » Sun Mar 19, 2017 12:02 am

Michelle_Tan_1G wrote:Yes, any shift in conformation requires an energy collision with one of the structural atoms strong enough to overcome the energy barrier.

How are these energy barriers usually overcome? Also, are there any calculations associated with that?

Michelle_Tan_1G
Posts: 35
Joined: Fri Jun 17, 2016 11:28 am

Re: energy barriers

Postby Michelle_Tan_1G » Sun Mar 19, 2017 12:49 am

Its caused by a collision between something (another molecule maybe?) and one of the atoms in the structure, which transfers the energy to change conformation. I'm pretty sure any calculations to do with it is beyond the scope of this course bc i dont remember learning anything about that :(


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