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Unformatted text preview: delocalized onto the oxygen atom, leaving it with a negative charge and the carbon atom with a positive charge. Again, that leaves the oxygen with an overall partial negative charge and the carbon with a partial positive charge. Klein also raised another interesting issue in his text as to why carbonyl groups are excellent electrophiles. He notes that the trigonal planar geometry of the carbonyl facilitates its ability to function as an electrophile, as it is easier for a nucleophile to attack the carbonyl. Taken together, the induction and resonance effects leave oxygen with a partial negative charge, and carbon with a partial positive charge. Accordingly, the oxygen atom on a carbonyl is very nucleophilic, and the carbon atom on a carbonyl is very electrophilic. Lastly, the overall geometry of carbonyl molecules also facilitate their functioning as a electrophile....
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This note was uploaded on 04/10/2011 for the course AAS 410.302.81 taught by Professor Thompson during the Spring '11 term at Johns Hopkins.
- Spring '11