Question

3)      Consider [Co(H2O)6]2+   and [Cr(C2O4)3]3-   complex ions

a)       Calculate the splitting energies of these complex ions.

b)      Compare your results with pairing energies of these metal ions and decide whether the ligands are weak field or strong field ligands.

c)       Calculate the crystal field stabilization energy for each compound.

 Complex λ1 λ2 λ3 Pairing   Energy (Kj/mol) [Co(H2O)6]2+ 510 460 - 250. 0 [Cr(C2O4)3]3- 565 415 266 244.3

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