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Resonance structures (Read 2410 times)
Gerrit-Jan Linker
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Resonance structures
24.03.11 at 21:56:55
Resonance structures
When more than one Lewis structure can be drawn, the molecule or ion is said to have resonance or mesomerism.
Resonance is a way of describing delocalized electrons within certain molecules or polyatomic ions where the bonding cannot be expressed by one single Lewis formula.
The individual Lewis structures are termed contributing resonance structures.  
Resonance is a useful model to view the delocalisation of electrons in these systems. It is however a model reasoning. Nature does not know about resonance. We only can use it in our model descriptions to 'understand' what happens in nature.  
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« Last Edit: 23.04.11 at 09:39:29 by Gerrit-Jan Linker »  

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