The C-O bond distance in [V(CO)_6] and [V(CO) | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(A) In metal carbonyls,the metal-carbon bond involves both $\sigma$-donation from $CO$ to the metal and $\pi$-back-bonding from the metal to the $CO$

Vedclass · Accepted Answer

$[V(CO)_6] < [V(CO)_6]^-$

Vedclass · Answer

(A) In metal carbonyls,the metal-carbon bond involves both $\sigma$-donation from $CO$ to the metal and $\pi$-back-bonding from the metal to the $CO$ $\pi^*$ antibonding orbital.As the negative charge on the complex increases,the electron density on the metal increases.This leads to greater $\pi$-back-bonding from the metal to the $CO$ ligand.Increased $\pi$-back-bonding populates the antibonding $\pi^*$ orbital of $CO$,which weakens the $C-O$ bond and increases its bond length.Since $[V(CO)_6]^-$ has a higher negative charge than $[V(CO)_6]$,it exhibits more $\pi$-back-bonding.Therefore,the $C-O$ bond length in $[V(CO)_6]^-$ is greater than in $[V(CO)_6]$,which means $[V(CO)_6] < [V(CO)_6]^-$.

The $C-O$ bond distance in $[V(CO)_6]$ and $[V(CO)_6]^-$ are:

Similar Questions

Give an example of synergistic bonding interaction in a carbonyl complex.

Which of the following is a $\sigma$ and $\pi$ bonded organometallic compound?

Which of the following is an organometallic compound?

What is the oxidation state of $Ti$ in the Ziegler-Natta catalyst?

Which of the following is not considered as an organometallic compound?

Vedclass Test Series

Exam Paper Generator

Online Exam Module