Sciencemadness Discussion Board

What is it about aromatic rings that induce non-polar properties on polar chains?

JefferyH - 17-5-2014 at 12:05

I've noticed that a lot of molecules with aromatic rings tend to behave as though they are non-polar, even if they have a polar chain such as a ketone or aldehyde attachment. Even aromatic rings with nearby halides either on a chain or on the ring seem to behave as though they are non-polar.

Is this caused by resonance with the ring or is there another reason for it?

leu - 17-5-2014 at 12:56

Please read:

http://en.wikipedia.org/wiki/Aromaticity

which should answer your query

JefferyH - 17-5-2014 at 13:19

So essentially this:
Quote:
Aromatic molecules typically display enhanced chemical stability, compared to similar non-aromatic molecules. A molecule that can be aromatic will tend to alter its electronic or conformational structure to be in this situation. This extra stability changes the chemistry of the molecule.



JefferyH - 17-5-2014 at 13:23

Would this also mean that ionic salts that would be partially soluble in polar organics would be much less soluble in aromatic molecules with polar groups? Or even, not soluble at all?

Or would the salts be in constant interaction, and/or influenced by the delocalized electrons of the ring, thus, enhancing their solubility even more so?

zed - 31-5-2014 at 22:16

You are beating a dead horse, that does not exist. It isn't that simple, or complicated.


And, when did you stop beating your wife. And why?

[Edited on 1-6-2014 by zed]