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In Fe(CO)5 , Fe-C bond possess...

In `Fe(CO)_5` , Fe-C bond possess

A

`pi`- character only

B

`sigmma` character only

C

ionic character only

D

both `sigmma` and `pi` character

Text Solution

Verified by Experts

The correct Answer is:
D
The M-C `sigma` bond is formed by the donation of lone pair of electrons on the carbonyl carbon into a vacant orbital of the metal.
The M-C `sigma` bond is formed by the donation of a pair of electrons from a filled d-orbital of metal into the vacant antibonding `pi^(pm)` orbital of CO. Thus, metal-carbon bond in metal carbonyls possess both `sigma` and `pi` character.
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