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Large Organic Compounds

Posted: Sun Oct 30, 2016 10:33 pm
by marinarosebrock
Is there a specific protocol for drawing the lewis dot structures of large organic compounds? If so, what is it?
Any tips on creating lewis structures for large compounds would be helpful as well!
Thank you

Re: Large Organic Compounds  [ENDORSED]

Posted: Mon Oct 31, 2016 11:24 am
by Chem_Mod
There is no protocol to guide anyone into writing the correct Lewis structure for a complicated molecules if simply given a chemical formula.

The following description will be more relevant in Chem14B, when you will begin organic chemistry.

However, if given a condensed structural formula, it is possible to construct Lewis structures for more complicated molecules. This type of formula has structural information encoded in it.

Imagine if you were given the condensed structural formula ---> (CH3)2CHCl

You should be able to understand that each -CH3 group is attached to the 2nd carbon which is also attached to -H and -Cl. Thus, this 2nd carbon can be thought of as a central atom.

Using Lewis structure rules and noting that carbon must always form 4 bonds (unless in a highly unstable (+) or (-) state) you should be able to complete the Lewis structure.