Cis and Trans

(Polar molecules, Non-polar molecules, etc.)

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Jose Robles 1D
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Joined: Fri Aug 02, 2019 12:15 am

Cis and Trans

Postby Jose Robles 1D » Sun Nov 24, 2019 11:32 pm

When does one know when to apply cis or trans shape to their structure?

Juliet Stephenson 4E
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Joined: Wed Sep 18, 2019 12:21 am

Re: Cis and Trans

Postby Juliet Stephenson 4E » Sun Nov 24, 2019 11:35 pm

I think it all has to do with the structure of whatever the molecule is binding to. If the main molecule features groups that are close together, then the attaching molecule would probably need to be cis.

Posts: 61
Joined: Sat Sep 14, 2019 12:16 am

Re: Cis and Trans

Postby ChristianM3F » Sun Nov 24, 2019 11:38 pm

I don't think it would be applying a "cis" structure to a molecule..?
Correct me if I'm wrong, but you'd probably determine if a molecule had a cis or trans structure based off of clues of the molecule. If the molecule had a higher melting or boiling point, it'd probably cis. Likewise, if it had a lower one, it'd probably trans.

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Re: Cis and Trans

Postby SMIYAZAKI_1B » Sun Nov 24, 2019 11:53 pm

Cis and trans refers to the difference in the orientation of the elements around the central atom. If the elements are in the same side, it’s CIF and opposites of each other is trans. This is only applicable to certain chemicals though and this difference makes the chemical properties a lot different.

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Joined: Sat Aug 24, 2019 12:15 am

Re: Cis and Trans

Postby 105335337 » Mon Nov 25, 2019 11:15 am

Cis & Trans relate to when the same molecule just has different bonding sites for outer elements. Trans is when they are diagonal and Cis is when they are on the same side. This is extremely important to biological compounds as it can totally change the function because shape is influenced. However, we do not know which side, so its your choice.

Maya Beal Dis 1D
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Joined: Sat Aug 17, 2019 12:16 am
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Re: Cis and Trans

Postby Maya Beal Dis 1D » Mon Nov 25, 2019 5:58 pm

I think if this were to be on a test it would most likely ask you to identify if the molecule is cis or trans and the effect that would have on the bonding/function of the molecule.

Kevin Liu 1J
Posts: 53
Joined: Thu Jul 25, 2019 12:16 am

Re: Cis and Trans

Postby Kevin Liu 1J » Wed Nov 27, 2019 11:23 pm

At least one tests, applying cis and trans should be either given in the question itself if drawing the structure or identifiable based on the structures given.

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