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Discuss the nature of bonding in the following coordination entities on the basis of Valence Bond Theory : Fe(CN)_(6)]^(4-) |
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Answer» Solution :`[Fe(CN)_(6)]^(4-)`-- `d^(2)sp^(3)`, octahedral, diamagnetic Formation of `[Fe(CN)_(6)]^(4-)` Oxidation state of Fe in this COMPLEX is +2. Electronic configuration of `Fe^(2+)` Pairing of electrons followed by `d^(2)sp^(3)` hybridisation of orbitals  Electrons donated by six `CN^(-)` ions are accommodated in six vacant `d^(2)sp^(3)` HYBRID orbitals giving octahedral shape. Pairing of electrons takes place because of strong `CN^(-)` LIGANDS. As there are no unpaired electrons, the complex is diamagnetic. |
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