Worked questionsExplain why an electronic transition for [Mn(H2O)6]²* high-spinis spin-forbidden, but for H.S. [Co(H2O)6]2 is spin-allowed.[Mn(H2O)6]2 is high-spin d5 Mn(II), ## t2gA transition from a t2g to eg orbital is impossible withoutbreaking the spin selection rule: DeltaS=0,[Co(H2O)6]2 is a high-spin d7 Co(II) complex. A transition froma t2g to eg orbital can occur without violating the spin selectionrule.NB: Transitions in both complexes are Laporte-forbidden.