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Posted (edited)

Sorry for creating a whole thread about this but I couldn't obtain an answer from Google.

I'm revising from my textbook and I have come across the structure of 2,2,4-Trimethylpentane. I'm slightly confused as to the structure which is displayed in the book. Part of the structure is H3C but I have always seen it as CH3.

Here is the structure of 2,2,4-Trimethylpentane I was familiar with -- 2-2-4-trimethylpentane-850697.jpg

Whereas on the structure displayed in the book, the furthest left CH3 on the trimethylpentane was displayed as C3H.

Are they the same notation but displayed in different manners, a typo or am I missing something?

Thanks

post-104381-0-56798900-1398370742_thumb.jpg

Edited by NowakScience
Posted

It is nothing to worry, it is just the same. Actually this is the way you'll find in most of the books, the reason being that for the leftmost carbon when we draw on paper we make the bonds towards its left so thus they are shown by H3C- and not -CH3. However this is not the case with right most carbon.

Posted

Its basically potatoe vs po-tot-o

 

 

It is nothing to worry, it is just the same. Actually this is the way you'll find in most of the books, the reason being that for the leftmost carbon when we draw on paper we make the bonds towards its left so thus they are shown by H3C- and not -CH3. However this is not the case with right most carbon.

Thanks guys, that was a help. I get how the structure puts the carbon to the right in the molecule, cheers. :)

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