The bond length of C-O bond in CO is 1.128 m | vedclass

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

Question

(A) In metal carbonyls like $Fe(CO)_5$,the metal-carbon bond involves synergic bonding.
This involves the donation of electron density from the $CO$

Vedclass · Accepted Answer

$1.158$

Vedclass · Answer

(A) In metal carbonyls like $Fe(CO)_5$,the metal-carbon bond involves synergic bonding.
This involves the donation of electron density from the $CO$ lone pair to the metal $d$-orbitals ($\sigma$-donation) and the back-donation of electron density from the metal $d$-orbitals to the empty antibonding $\pi^*$ orbitals of $CO$ ($\pi$-backbonding).
This back-donation increases the electron density in the antibonding $\pi^*$ orbital of $CO$,which decreases the bond order of the $C-O$ bond.
$A$ decrease in bond order leads to an increase in the $C-O$ bond length.
Therefore,the $C-O$ bond length in $Fe(CO)_5$ $(1.158 \ \mathring{A})$ is greater than that in free $CO$ $(1.128 \ \mathring{A})$.

The bond length of $C-O$ bond in $CO$ is $1.128 \ \mathring{A}$. The $C-O$ bond length in $Fe(CO)_5$ is ................ $\mathring{A}$.

Similar Questions

Which of the following compounds is used as an antiknock agent?

Amalgams are:

Which of the following is not true for metal carbonyls?

$CH_3MgI$ is an organometallic compound due to the presence of:

$CH_3MgBr$ is an organometallic compound because ....

Vedclass Test Series

Exam Paper Generator

Online Exam Module