IGNOU MCH 11 2026 2027 - Give a suitable chemical equation for the preparation of molybdenocene

Question

Give a suitable chemical equation for the preparation of molybdenocene. Gives its reaction with
ethylene.

13 Aug 2026

Answer :

Word Count : 356

Molybdenocene is an organometallic compound of molybdenum containing two cyclopentadienyl rings. It is represented by the formula (\mathrm{Mo(C_5H_5)_2}), commonly written as (\mathrm{Cp_2Mo}), where (\mathrm{Cp=C_5H_5}). It belongs to the class of metallocene compounds and illustrates the bonding between a transition metal and π-bonded cyclopentadienyl ligands. Molybdenocene can be prepared by reacting molybdenum pentachloride with sodium cyclopentadienide in the presence of sodium as a reducing agent. Sodium cyclopentadienide supplies the cyclopentadienyl ligands, while sodium reduces molybdenum from the +5 oxidation state to the +2

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