Coordination CompoundHard
Question
All the metal ions contains t2g 6eg0 configurations. Which of the following complex will be paramagnetic?
Options
A. [FeCl(CN)4(O2)]4-
B.K4[Fe(CN)6]
C.[Co(NH3)6]Cl3
D.[Fe(CN)5(O2)]-5
Solution
(A) [FeCl(CN)4(O2)]4- ; O2 is O22- ; CN- is strong field ligand, so compels for the pairing of electrons.
Fe3+ → 3d5 ;
(B) K4[Fe(CN)6] ; CN- is strong field ligand so compels for the pairing of electrons.
Fe2+ → 3d6 :
(C) [Co(NH3)6]Cl3 ; NH3 is strong field ligand and 3d6 configuration has higher CFSE compelling for the pairing of electrons.
Co3+ → 3d6
(D) [Fe(CN)5(O2)]5- ; O2 is O22- ; CN- is strong field ligand so compels for the pairing of electrons.
Fe2+ → 3d6 ;
Fe3+ → 3d5 ;
(B) K4[Fe(CN)6] ; CN- is strong field ligand so compels for the pairing of electrons.
Fe2+ → 3d6 :
(C) [Co(NH3)6]Cl3 ; NH3 is strong field ligand and 3d6 configuration has higher CFSE compelling for the pairing of electrons.
Co3+ → 3d6
(D) [Fe(CN)5(O2)]5- ; O2 is O22- ; CN- is strong field ligand so compels for the pairing of electrons.
Fe2+ → 3d6 ;
Create a free account to view solution
View Solution FreeMore Coordination Compound Questions
Which of the following is copper(I) compound ?...Which is not a π-bonded complex ?...The number of unpaired electrons present in complex ion [FeF6]3- is :...The complexes [Pt(NH3)4] [PtCl6] and [Pt(NH3)4Cl2] [PtCl4] are :...Select incorrect statement(s) for [Cu(CN)4]3–, [Cd(CN)4]2– and [Cu(NH3)4]2+ complex ion....