1@ mallika how can u apply hyperconjugation here
u hav now interested me in this topic
Colours in complexes are decided by the constituents of the coordination sphere, right? So why do K4[Fe(CN)6] and Fe2[Fe(CN)6] differ in colour though coordination sphere is intact?
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11Can u explain in more understandable terms? Or atleast tell where this exten..... comes into this question or how it explains it, please.
1umm .. forget that .. see d- d transition state of Fe & K .. give e- config of K & Fe .. u have NCERT txtbk of class 12 ?
11Anyway in this case both are counter ions. So do they have any interactions wit the ligands in the coordination sphere?
11well i hav heard this phrrase extended hyperconjugation
bt i dont know where iwill try to search it & giv u a nice ans
:D
1was linking it to oximes lol .. just tlking out aloud wt i was thnking .. now some one tell me where is it written that color depends on co- ord sphere ?
11Why dere should b colour differ due to counter ion is what this thread is all abt!
1all due 2 the unshared pair of e-1 of both d counter ions
1hey ANI can u giv som other example than K4[Fe(CN)6) & Fe2[Fe(CN)6]
if u cant then i will share my views (& i jst think u cant)
11Wherever potassium ferrocyanate is used in qualitative analysis is an example
1k.. tell me y color differs between
[Cr(H2o)4cl2]cl.2H2O
[Cr(H2o)5cl]cl2H2O
1the reaction involves transfer of an electron when the metals differ and the co ord sphere is the same
11@Ram: Constituents of Coordination sphere have changed. But in my q, they don't! And I know only of Potassium Ferrocyanate. There may be others.
1and ani i think u r fooling others in Fe2[Fe(CN)6]
iron will exist as Fe4+ nt possible
so this compnd dont exist
1k.. can u plz tell me whether in ur q d counter ions are ionisable????
1k.. can u plz tell me whether in ur q d counter ions are ionisable????
1i too ve never seen such a complex....
but seems to exist but not...........
1i thnk yup ani bt anyways dis cmpnd doesnt exist
frm where u found it
11It's what you get when you add K4[Fe(CN)6] to any solution with Fe2+ ions.