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![[Post New]](/templates/default/images/icon_minipost_new.gif) 26 Feb 2008 11:43:48 IST
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[Fe(H2O)5(NO)]SO4
find oxid. no. of Fe
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26 Feb 2008 11:45:46 IST
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It's +1 and d reason is charge tranfer transition coz of charge tranfer transition an electron is tranferred rom NO to Fe2+ making it Fe+
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26 Feb 2008 11:51:01 IST
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i think its 3+
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26 Feb 2008 15:02:04 IST
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1st of all Fe exists only in +2 or +3 now NO and H2O are neutral ligands.hence the charge on complex part is +2 coz SO4 is 2- Thus +2 on Fe
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26 Feb 2008 15:09:53 IST
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its +1 only. bcoz there is charge transfer to NO which is the reason of brown ring formation . but can any one explain me its magnetic moment with CFT theory. Magnetic Moment :  15 BM but how. |
"Experience is what u get when u dont get what u want"-DAN STANFORD
IIT KGP-the best
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26 Feb 2008 15:14:47 IST
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pls someone reply.
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"Experience is what u get when u dont get what u want"-DAN STANFORD
IIT KGP-the best
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26 Feb 2008 15:17:37 IST
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if Mag moment is 15.......3 unpaired e- since its attached to st ligand the diff. in eg and t2g levels will be significant........if there are only 3 unpaired e- =>+3 oxid state coz normally it is 3d6
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26 Feb 2008 15:24:24 IST
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It will be +3 since in [Fe(H2O)5(NO)]2+ ,H20 is neutral and NO is -1,so net charge on Fe will be +3...u can refer to the similar structure at dis link...
http://www.3dchem.com/inorganicmolecule.asp?id=237#
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MaNuTd RoXxXx..MaNuTd 2 WiN PrEmIeR LeAgUe ThIs SeAsOn ToO AlOnG WiTh ChAmPiOnS LeAgUe.....HaiL RoNaLdO ...HaiL LaMpArD... |
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26 Feb 2008 15:27:43 IST
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oh..i thot NO was neutral thats y i was getting +2.............this also answers the MAgnetic moment=root(15) Bm
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26 Feb 2008 15:30:12 IST
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mr. lampard the link u provided is for [Fe(OH2)5NCS]2+ we are here talking about [Fe(OH2)5NO]2+
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"Experience is what u get when u dont get what u want"-DAN STANFORD
IIT KGP-the best
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26 Feb 2008 15:32:14 IST
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water has 0 nitric oxide has -1 nad sulphate has -2
so fe has +3
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26 Feb 2008 15:43:21 IST
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th eink u supplied is useless,,,its shows only the structure....also of some other compound!!!!
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26 Feb 2008 16:21:14 IST
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arre yaar!!! its brown ring test........
and its very much sure that Fe is in +1 oxidation state....
that's why brown ring formed is very ustable........
because Fe^ +1 is very unstable .....
and slight jerking cause its oxidation to +2 state...
and ring will be destroyed....
so, this experiment is performed very carefully........
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LOKESH SARDANA,
department of Production and Industrial engineering,
Indian Institute of Technology,Roorkee.
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26 Feb 2008 16:29:23 IST
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The link i provided gives the structure wich is similar to dat of [Fe(OH2)5NO]2+
only the CS-2 group is replaced by O2- group....but the structure remains same...
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MaNuTd RoXxXx..MaNuTd 2 WiN PrEmIeR LeAgUe ThIs SeAsOn ToO AlOnG WiTh ChAmPiOnS LeAgUe.....HaiL RoNaLdO ...HaiL LaMpArD... |
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26 Feb 2008 21:32:40 IST
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