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I think I remember reading a Wikipedia article about this, but I can't find the name of this phenomenon at all. Pinging @ Smokefoot: maybe you might know since you are an active editor of organic chemistry articles. Here I have drawn the concept:
This is the phenomenon in which a double bond "extends" a functional group by conjugation, so that it behaves similarly to the parent functional group. The bottom compound, an "extended" carboxylic acid, has similar chemistry as the top carboxylic acid, except the two parts of the functionality (C=O and -OH) are separated by an additional double bond. The reason for this similarity is because conjugation can transfer charges by resonance, e.g. the bottom compound is acidic like a carboxylic acid because the negative charge on the deprotonated -OH oxygen can move to the carbonyl oxygen by resonance. Michael7604 ( talk) 05:50, 15 March 2024 (UTC)
I'm looking for the most useful term, intended to exclude fictitious forces. HOTmag ( talk) 08:38, 15 March 2024 (UTC)
Science desk | ||
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< March 14 | << Feb | March | Apr >> | March 16 > |
Welcome to the Wikipedia Science Reference Desk Archives |
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The page you are currently viewing is a transcluded archive page. While you can leave answers for any questions shown below, please ask new questions on one of the current reference desk pages. |
I think I remember reading a Wikipedia article about this, but I can't find the name of this phenomenon at all. Pinging @ Smokefoot: maybe you might know since you are an active editor of organic chemistry articles. Here I have drawn the concept:
This is the phenomenon in which a double bond "extends" a functional group by conjugation, so that it behaves similarly to the parent functional group. The bottom compound, an "extended" carboxylic acid, has similar chemistry as the top carboxylic acid, except the two parts of the functionality (C=O and -OH) are separated by an additional double bond. The reason for this similarity is because conjugation can transfer charges by resonance, e.g. the bottom compound is acidic like a carboxylic acid because the negative charge on the deprotonated -OH oxygen can move to the carbonyl oxygen by resonance. Michael7604 ( talk) 05:50, 15 March 2024 (UTC)
I'm looking for the most useful term, intended to exclude fictitious forces. HOTmag ( talk) 08:38, 15 March 2024 (UTC)