Inorganic mechanism

Nov 2012
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Unknown008

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I might not be the ideal person to reply, but because of the lack of helpers on the forum...

My thought is that because of the two oxygen atoms in between the Fe ions, there is a release of H^+ ions, hence explaining the acidic nature of the solution.

I might be totally wrong on this and want to point it out (I did chemistry till High School). It's just my 2 cents on that matter.
 
Nov 2012
4
0
Thank you and this is abosulutely right of you - still, it's not the point I'm trying to know. This was kind of clear one. Just how it happens... That's the issue of mechanisms.
 

Unknown008

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Hmm, looking again at the molecule reminds me of the d orbital. Maybe that's relevant?

Once the H2O molecules lined up along the orbitals, I guess there's something that prompts the dimerisation. Fe is positively charged and maybe repels the H atoms to some extent since they bear a delta + charge.

I guess this in turns makes the O atom more negative, thereby getting attracted to another Fe ion.

Hmm, I don't know what to think of outside those :p