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Ferrocene, a metallocene, appears as bright orange salt-like crystals when crystallized from alcohol. It has a camphor-like odor and forms an orange crystalline solid. The compound is insoluble in water but soluble in benzene, ether, and alcohol, with an iron content of 29.4–30.6%.

용도Ferrocene is used as a catalyst for vulcanization, acceleration, and polymerization, as a chemical intermediate for polymeric compounds such as high temperature polymers, as an antiknock additive for gasoline, as a coating for missiles and satellites, and as a high-temperature lubricant.

일반 설명Ferrocene appears as orange crystalline solid or orange-yellow powder. Sublimes above 212 °F. Camphor odor. (NTP, 1992)

정의ferrocene: An orange-red crystallinesolid, Fe(C5H5)2; m.p. 173°C. Itcan be made by adding the ioniccompound Na+C5H5- (cyclopentadienylsodium, made from sodium andcyclopentadiene) to iron(III) chloride.In ferrocene, the two rings are parallel,with the iron ion sandwiched betweenthem (hence the namesandwich compound: see formula).The bonding is between pi orbitalson the rings and d-orbitals on theFe2+ ion. The compound can undergoelectrophilic substitution on theC5H5rings (they have some aromatic character).It can also be oxidized to theblue ion (C5H5)2Fe+. Ferrocene is the first of a class of similar complexescalled sandwich compounds. Its systematicname is di-π-cyclopentadienyliron(II).