Structural Isomers

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Nicholas Wu 3E
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Joined: Fri Sep 25, 2015 3:00 am

Structural Isomers

Postby Nicholas Wu 3E » Sun Feb 28, 2016 3:47 pm

In one of the lectures taught by a substitute, structural isomers of C5H12 are discussed. There is a straight line, a cross, and a chain of four with a carbon chained to a secondary carbon. However, it is also possible to make a different chain of a T shape. Is there a reason this structural isomer wasn't mentioned?


Hannah Markovic 3C
Posts: 32
Joined: Fri Sep 25, 2015 3:00 am

Re: Structural Isomers

Postby Hannah Markovic 3C » Sun Feb 28, 2016 6:51 pm

The chain of 4 is the same as the T-shaped chain. Carbon has an sp3 structure in alkanes, so it can rotate, and this is just a rotation of the same molecule. If you draw it with line structure instead of lewis structure you can see it a lot more easily - I would recommend using line structure to look for structural isomers.

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