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Topic: Diagram of how Fe3+ complexes with aspirin  (Read 2399 times)

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Offline dun13203171

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Diagram of how Fe3+ complexes with aspirin
« on: May 16, 2015, 08:20:22 AM »
Hi guys,
             Does anyone know where I can find a diagram of how fe3+ complexes with aspirin? I would like to add this to my write up, can't seem to find anything.
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Offline dun13203171

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Re: Diagram of how Fe3+ complexes with aspirin
« Reply #1 on: May 16, 2015, 08:38:21 AM »
Its ok guys I just found a good diagram, thanks.
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Offline Babcock_Hall

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Re: Diagram of how Fe3+ complexes with aspirin
« Reply #2 on: May 16, 2015, 09:40:57 AM »
When the breakdown product of aspirin forms a complex with iron, a strongly purple color is observed.  This is a useful test under some circumstances.
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Offline dun13203171

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Re: Diagram of how Fe3+ complexes with aspirin
« Reply #3 on: May 16, 2015, 10:37:42 AM »
Could someone help me explain the diagram at the top of the page in this document.

http://www.mdche.u-szeged.hu/Joomla/eng/download/FePHOTOa.pdf

It shows how aspirin complexes with Fe3+.

Each salicylic acid molecule becomes deprotonated, loosing a proton from the hydroxyl and carboxyl group,since there 3 molecules, that account for the 6 protons produced when the complex forms.

But how does the salicylic acid actually form the complex with fe3+, if someone could help me with that it would be a great help.
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