Parenthesis around some carbons?

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Edris Saadat 1A
Posts: 32
Joined: Fri Sep 25, 2015 3:00 am

Parenthesis around some carbons?

Postby Edris Saadat 1A » Thu Feb 25, 2016 6:38 pm

What does it mean when there is a parenthesis around a carbon chain? Like problem 1.12 B:

CH3CH2C(CH3)2CCH

Why does the CH3 have parenthesis around it? Does it mean its a substituent or does it have no meaning?

haleyf 2I
Posts: 12
Joined: Fri Sep 25, 2015 3:00 am

Re: Parenthesis around some carbons?

Postby haleyf 2I » Thu Feb 25, 2016 6:43 pm

Yes it means that the carbon before the parentheses has two methyl substituents attached to it. The parentheses make it easier to read so you can easily see that they are substituents attached at that carbon and not part of the chain.

stefanytorres1F
Posts: 16
Joined: Tue Nov 17, 2015 3:00 am

Re: Parenthesis around some carbons?

Postby stefanytorres1F » Thu Feb 25, 2016 8:54 pm

When dealing with the structural formula, yes the parenthesis in a formula indicates that it is a substituent, but its not always the case. When you look at a condensed structural formula, the groups that repeat are also put in parenthesis even though they may be part of the main group.


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