Line Structures

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Aimiel Casillan 1J
Posts: 24
Joined: Fri Sep 25, 2015 3:00 am

Line Structures

Postby Aimiel Casillan 1J » Fri Feb 26, 2016 9:37 pm

My question pertains to problem 1.10b in the Introduction to Organic Chem textbook, and the picture below shows the book's solution in comparison to my answer. For organic molecules such as , or 3,3-dimethylpentane, is there a difference between the two line structures below? Is it permissible to illustrate the line structure of this molecule in either form?

FullSizeRender (1).jpg

Marisa Mekkittikul2E
Posts: 6
Joined: Fri Sep 25, 2015 3:00 am

Re: Line Structures

Postby Marisa Mekkittikul2E » Fri Feb 26, 2016 10:11 pm

One is cis and the other is trans, so there is a difference.

Ronald Yang 2F
Posts: 86
Joined: Fri Sep 25, 2015 3:00 am

Re: Line Structures

Postby Ronald Yang 2F » Fri Feb 26, 2016 11:42 pm

Actually, cis or trans doesn't apply for this molecule because it's an alkane, not an alkene. The structure you drew right next to the answer is correct as well. It's just that the left one shows better the "tetrahedral" shape of that sp3 carbon.


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