Question

# In $$\displaystyle Fe\left ( CO \right )_{5}$$, the $$\displaystyle Fe-C$$ bond possesses :

A
π character only
B
σ character only
C
ionic character only
D
both π and σ characters

Solution

## The correct option is D both $$\displaystyle \pi$$ and $$\displaystyle \sigma$$ charactersThe metal-carbon bond in metal carbonyls possesses both s and p character. M-C $$\sigma$$ bond - ligand to metal bondM-C $$\pi$$ bond - metal to ligandMetal-ligand: The metal to ligand bonding creates a synergic effect which strengthens the bond between $$CO$$ and the metal.Therefore, the correct option is D.Chemistry

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