Question:
The correct statement among the following is:
The correct statement among the following is:
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Ferrocene is an organometallic compound with a stable, sandwich-like structure.
Updated On: Jan 13, 2026
- Ferrocene has two cyclohexadiene rings coordinated to iron atom.
- Ferrocene has two cyclopentadienyl anion rings bonded to iron (II) ion.
- Perxenate ion is [XeO₂F₂]²⁻.
- Perxenate ion is tetrahedral in shape.
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The Correct Option is B
Approach Solution - 1
Step 1: Structure of Ferrocene
Ferrocene is \({Fe}(\eta^5 - {C}_5{H}_5)_2\).
It consists of two \(\eta^5\)-cyclopentadienyl ({Cp}$^-$) anions bonded to an Fe$^{2+}$ ion.
It exhibits a "sandwich" structure with iron between two parallel Cp rings.
It consists of two \(\eta^5\)-cyclopentadienyl ({Cp}$^-$) anions bonded to an Fe$^{2+}$ ion.
It exhibits a "sandwich" structure with iron between two parallel Cp rings.
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Approach Solution -2
The correct statement is:
Ferrocene is an organometallic compound consisting of an iron (II) ion sandwiched between two cyclopentadienyl anion rings.
Each cyclopentadienyl ring acts as a five-electron donor ligand, and together they form a very stable sandwich complex.
The bonding involves the overlap of the iron's d orbitals with the π orbitals of the cyclopentadienyl rings, resulting in strong metal-ligand interactions.
This unique structure gives ferrocene exceptional stability and aromatic character, making it a classic example of a metallocene.
Hence, the statement "Ferrocene has two cyclopentadienyl anion rings bonded to iron (II) ion" accurately describes the compound.
Ferrocene is an organometallic compound consisting of an iron (II) ion sandwiched between two cyclopentadienyl anion rings.
Each cyclopentadienyl ring acts as a five-electron donor ligand, and together they form a very stable sandwich complex.
The bonding involves the overlap of the iron's d orbitals with the π orbitals of the cyclopentadienyl rings, resulting in strong metal-ligand interactions.
This unique structure gives ferrocene exceptional stability and aromatic character, making it a classic example of a metallocene.
Hence, the statement "Ferrocene has two cyclopentadienyl anion rings bonded to iron (II) ion" accurately describes the compound.
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