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Cerocene

Chemical compound From Wikipedia, the free encyclopedia

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Cerocene is a organometallic complex with the chemical formula Ce(C8H8)2.[1][2] It is a sandwich compound containing a central cerium atom and two cyclooctatetraenide rings.

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Preparation

Cerocene can be prepared by reducing cerium(III) di-cyclooctatraene anion salts.

Ce(C8H8)2K → Ce(C8H8)2 + K+[1]

Chemical properties

Cerocene decomposes when exposed to water or oxygen to yield non-stoichiometric cerium-oxides and cyclooctratraene derivitives.[2]

It undergoes a disproportionation, leading to an equilibrium between cerocene and a double-decker structure containing two cerium atoms:[2]

2 Ce(C8H8)2 Ce2(C8H8)3 + C8H8

Cerocene is a known precursor for uranocene, U(C8H8)2.[1]

Ce(C8H8)2 + UCl3 U(C8H8)2

Cerocene is commonly confused with the compound tris(cyclopentadienyl)cerium.

References

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