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Topic: Acid strenth of aromatic organic molecules with different groups attached  (Read 3136 times)

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Offline Mikel

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Acid strenth of aromatic organic molecules with different groups attached
« on: June 05, 2008, 08:00:54 AM »
CH3CH2CH2CH2OH

A benzene ring with an OH group attached on the top and a NO2 group attached at the bottom.


A benzene ring with an OH group attached on the top and a CH3 group attached at the bottom.


A benzene ring with an OH group attached on the top


And my question is, how do you determine the compounds in order of decreasing acid strength?
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Offline sjb

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Re: Acid strenth of aromatic organic molecules with different groups attached
« Reply #1 on: June 05, 2008, 08:18:40 AM »
Look to see if there are any stabilising (or destabilising) influences, typically resonance forms that may affect both the alcohol, and the deprotonated form. Is a nitro group electron-donating, or withdrawing? What about a methyl group?
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