Multiple Lewis Dot Structures

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Presentation transcript:

Multiple Lewis Dot Structures CO32- 24 total valence electrons 2- O C 2- O C 2- O C Resonance structures One of two or more Lewis structures for a molecule that cannot be depicted by a single structure

“Delocalized electrons” spread throughout the molecule. Resonance Structures Resonance Structure Resonance Structure Resonance Structure Experimentally, all three bonds are measured and have the same bond length... ...longer than a double bond and shorter than a single bond.... ...i.e. the observed bonds have characteristics of both single and double bonds. “Delocalized electrons” spread throughout the molecule. Resonance Hybrid: Representation of the average resonance structures.

Resonance Structures: Benzene (C6H6) Delocalized Electrons C H http://www.ecu.edu/learnchem/gerow/ Resonance Hybrid