22-3 Using the following spectrochemical series, determine whether the following

Question

22-3    Using the following spectrochemical series, determine whether the following complexes are

             paramagnetic or diamagnetic.  Explain your answers.

I1-  < Br1-  < Cl1-  <  F1-  < OH1-  <  C2O42-  <  H2O  < NCS1- < NH3  < en  <  NO21-  < CN1-  < CO

            weak-field ligands strong-field ligands

            a.     [FeF6 ]4-                           c.     [Ir(OH)6]2-                      e.     [Os(NH3)6 ]2+     

            b.     [Cu(en)3 ]3+                       d.     [Rh(CN)6 ]3-                      

Explanation / Answer

a]fe +2 oxidation and with weak field ligand so the it is paramagnetic

b] Cu +3 ox.state and with strong field ligand so it is diamagnetic

c]Ir +4 ox state wth weak field lugand so it is paramagnetic

d]Rh +3 ox state wth strong field ligand so it is diamagnetic

e]Os +3 ox state wth strong field ligand so it is diamagnetic

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