11i know what u are saying is correct, Akshay..
But the problem is, I know what cena is correct too...
we know that NH3 is a strong ligand.but then why complex[Cr(NH3)6]3+ have 3 unpaired electrons.
please give the complete and clear concept
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41 Answers
11
1This is an octahedral complex,which has eg orbitals at higher energy than t2g,so follow hunds rule and aufbau principle,first all equal energy having lesser energy will be half filled then pairing starts
11aarthi, NH3 is strong enough a ligand to cause pairing of electrons
Akshay, see the diagram that aarthi has given.....Cena is asking abt pairing at that stage
13 unpaired electrons right?
now 3 identical low energy orbitals will be filled first then pairing starts(this is the concept of CFT)
Hund's Rule is never violated
11aarthi,
u can take it for granted that CN- and NH3 are strong ligands anywhere in the world
akshay,
this question is in accordance with the theory which we read before the CFT
1@ Strider
u r talking about VBT right
VBT is wrong many times,that's why CFT was introduced
CFT rocks man
