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why d-d transition is not observed in [Si(H2O)6]4+ complex?

why d-d transition is not observed in [Si(H2O)6]4+ complex?

Grade:12th pass

1 Answers

Umakant biswal
5349 Points
6 years ago
dear aakansha 
its a sp3d2 hybrid complex. 
In a d–d transition, an electron in a d orbital on the metal is excited by a photon to another d orbital of higher energy. In complexes of the transition metals, the d orbitals do not all have the same energy. In centrosymmetric complexes, d-d transitions are forbidden by the Laporte rule.
Laporte rule states that, if a molecule is centrosymmetric, transitions within a given set of p or d orbitals are forbidden. 
so, that will be the reason for this . 
HOPE IT CLEARS 
REGARDS 
 

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