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In metal carbonyls, there is synergic bo...

In metal carbonyls, there is synergic bonding interaction between metal and carbon monoxide. This leads to increase in strength of metal ligands bond and decrease in bond order of CO in carbonyl complex as compared to bond order in carbon monoxide.
Simple carbonyls are invariably spin-paired complexes except for vanadium metal.
Which one of the following metal carbonyls are inner orbital complexes with diamagnetic property ?
`(P) Ni(CO)_(4)" "(Q) Fe(CO)_(5)`
`(R ) V(CO)_(6)" "(S) Cr(CO)_(6)`
Select the correct answer from the codes given below :

A

I and II only

B

II, III and IV

C

II and IV

D

I,II and IV

Text Solution

Verified by Experts

(C), `Ni(CO)_(4)sp^(3)` diamagnetic
`Fe(CO)_(5)dsp^(3)` diamagnetic
`V(CO)_(6)d^(2)sp^(3)` paramagnetic
`Cr(CO)_(6)d^(2)sp^(3)` diamagnetic
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In metal carbonyls, there is synergic bonding interaction between metal and carbon monoxide. This leads to increase in strength of metal ligands bond and decrease in bond order of CO in carbonyl complex as compared to bond order in carbon monoxide. Simple carbonyls are invariably spin-paired complexes except for vanadium metal. Which of the following statement is correct for metal carbonyls ?

In metal carbonyls, there is synergic bonding interaction between metal and carbon monoxide. This leads to increase in strength of metal ligands bond and decrease in bond order of CO in carbonyl complex as compared to bond order in carbon monoxide. Simple carbonyls are invariably spin-paired complexes except for vanadium metal. Which of the following statement is false for nickel carbonyl [Ni(CO)_(4)] ?

In metal carbonyls, there is synergic bonding interaction between metal and carbon monoxide. This leads to increase in strength of metal ligands bond and decrease in bond order of CO in carbonyl complex as compared to bond order in carbon monoxide. Simple carbonyls are invariably spin-paired complexes except for vanadium metal. The increase in bond length in CO as compared to carbon monoxide is due to :