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Molybdenocene is a sandwich-type organometallic compound in which a molybdenum atom is bonded between two cyclopentadienyl rings. It is generally represented as molybdenocene, (\mathrm{Mo(\eta^5-C_5H_5)_2}). The cyclopentadienyl ligands stabilize the metal through strong metal–π interactions. Molybdenocene is an important example of a metallocene and exhibits characteristic reactions of transition-metal organometallic compounds. A suitable method for the preparation of molybdenocene involves the reaction of molybdenum tetrachloride with sodium cyclopentadienide. Sodium cyclopentadienide acts as a source of the cyclopentadienyl anion, which coordinates to the molybdenum centre. The reaction can be represented as: [ \mathrm{MoCl_4 + 2NaC_5H_5 __________ _____ ___ ____ ____.
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