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The hybridisation of [NiCl(2)(PPh(3))(2)...

The hybridisation of `[NiCl_(2)(PPh_(3))_(2)]` and `[NiCl_(2)(PMe_(3))_(2)]` are respectively ( consider `PPh_(3)` a bulkier ligand than `Pme_(3)) :`

A

`sp^(3)` and `dsp^(2)`

B

`sp^(3)" and "sp^(3)`

C

`dsp^(2)" and " dsp^(2)`

D

`dsp^(2) " and " sp^(3)`

Text Solution

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The correct Answer is:
1
Both are strong field figure ligands but complex with `PPh_(3)` is tetrahedral due to its bulkier nature.
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Valence bond theory for bonding in transition metal complexes was developed by Pauling. From the valence bond point of view, formation of a complex involves reaction between Lewis bases (ligands) and a Lewis acid (metal atom or metal ion) with the formation of coordination covalent (or dative) bonds between them. The model utilizes hybridization of metal s, p and d valence orbitals to account for the observed structures and magnetic properies of complexes. Valence bond theory is able to deal satisfactorily with many stereo chemical and magnetic properies but is has nothing to say about electronic spectra or the reason for the kinetic inertness of chromium (III) and low spin cobalt (III) octahedral complexes. To understand this and more other features of transition metal we must turn to other theories like crystal field theory etc. Pure crystal field theory assumes that the only interaction between the metal ion and the ligands is an electrostatic or ionic one with the ligands being regarded as negative point charges. This theory is quite successful in interpreting many important properties of complexes. The hybridization of [NiCl_(2)(PPh_(3))_(2)]" and "[NiCl_(2).(Pme_(3))_(2)] are respectively (consider PPh_(3) a bulkier ligand than Pme_(3) ) :

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The geometries of [Ni(CO)_(4)] and [NiCI_(2)(PPh_(3))-(2)] are

[NiCl_(4)]^(2-),[PtCl_(4)]^(2-) and [PdCl_(4)]^(2-) are respectively:-

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RESONANCE-COORDINATION COMPOUNDS-Additional Problem for Self Practice (APSP) Part-IV Practice Test -2 (Section-5) (Matching Lift type )
  1. The hybridisation of [NiCl(2)(PPh(3))(2)] and [NiCl(2)(PMe(3))(2)] are...

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  2. Column-I and Column-II contains four entries each. Entries of Column-I...

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