Chemistry · Bonding: Valence bond approach and basic ideas of Crystal field theory
The structures of _{4}\right] \) and _{3} P\right)_{2} C l_{2}\right] \) are:
The structures of \( \left[N i(C O)_{4}\right] \) and \( \left[N i\left(\left(P h_{3}\right)_{3} P\right)_{2} C l_{2}\right] \) are:
- A. square planar in both cases
- B. tetrahedral and square planar respectively
- C. tetrahedral in both cases
- D. square planar and tetrahedral respectively
Step-by-step solution
[Ni(CO)4] has Ni in zero oxidation state with a d10 configuration, leading to a tetrahedral geometry via sp3 hybridization. [Ni(PPh3)2Cl2] has Ni in +2 oxidation state with a d8 configuration, which commonly adopts square planar geometry for strong field ligands like PPh3. Thus, the first is tetrahedral and the second is square planar.
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