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Topic: Resonance sturctures  (Read 3776 times)

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Offline deutdeut

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Resonance sturctures
« on: December 15, 2006, 12:36:17 AM »
The book asks me to draw the resonance structures of a molecule, do I need to connect the structures by an arrow? Because the arrow is just used to represent the true molecule is internediate the resonance structures, since it just asks me to draw the resonance structures, can I omit the arrow?
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Offline Bakegaku

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Re: Resonance sturctures
« Reply #1 on: December 15, 2006, 12:39:48 AM »
Is this just a homework assignment?  I doubt it will matter that much if you do or don't include it in that situation.  If so, I'd ask the teacher for their preference.

But other than that I think I'd suggest just going with the arrow to be safe.
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Offline Yggdrasil

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Re: Resonance sturctures
« Reply #2 on: December 15, 2006, 12:48:05 AM »
I think you should draw the arrow just to make it clear that structures are resonance structures and not just two random structures you've drawn next to eachother.
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Offline deutdeut

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Re: Resonance sturctures
« Reply #3 on: December 15, 2006, 12:49:42 AM »
Is the arrow really important? What's its significance?
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Offline enahs

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Re: Resonance sturctures
« Reply #4 on: December 15, 2006, 01:20:33 AM »
Yes you should draw it and yes it is important and significant.

Lewis structures represent a simple form of bonding in a molecule and lone pairs, the arrows in the resonance structure emphasis that it is not either one of these two (or 3,4,5...n) structures, but a hybrid of the them.

I can almost guarantee your instructor will take off points if you do not include the arrow (and the correct kind of arrow too).
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