Give the oxidation state, d-orbital occupation and coordination number

1.	Give the oxidation state, d-orbital occupation and coordination number of the central metal ion in the following complexes:(i) K3[CO(C2O4)3](ii) cis-[Cr(en)2Cl2]Cl(iii) (NH4)2[COF4](iv) [Mn(H2O)6]SO4
Answer» (i) K₃[CO(C₂O₄)₃] The central metal ion is CO coordination number: 6 oxidation state: +3 d orbital occupation : t⁶_2g eg⁰ (ii) cis-[Cr(en)₂Cl₂]Cl central metal: Cr coordination number: 6 oxidation state:+3 . d orbital occupation : t³_2g eg⁰ (iii) (NH₄)₂[COF₄] central metal: Co oxidation state: +2 coordination number: 4 d orbital occupation : eg⁴ t³_2g (iv) [Mn(H₂O)₆]SO₄ Central metal: Mn coordination number: 6 oxidation state: +2 d orbital occupancy: t³_2g eg²

Give the oxidation state, d-orbital occupation and coordination number of the central metal ion in the following complexes:(i) K3[CO(C2O4)3](ii) cis-[Cr(en)2Cl2]Cl(iii) (NH4)2[COF4](iv) [Mn(H2O)6]SO4

Answer»

(i) K₃[CO(C₂O₄)₃]
The central metal ion is CO
coordination number: 6
oxidation state: +3
d orbital occupation : t⁶_2g eg⁰

(ii) cis-[Cr(en)₂Cl₂]Cl
central metal: Cr
coordination number: 6
oxidation state:+3 .
d orbital occupation : t³_2g eg⁰

(iii) (NH₄)₂[COF₄]
central metal: Co

oxidation state: +2

coordination number: 4

d orbital occupation : eg⁴ t³_2g

(iv) [Mn(H₂O)₆]SO₄

Central metal: Mn
coordination number: 6
oxidation state: +2
d orbital occupancy: t³_2g eg²