Also called dicyclopentadienyliron. an orange, crystalline, water-insoluble coordination compound, (C 5 H 5) 2 Fe, having a camphorlike odor: used chiefly as an antiknock agent for gasoline and as a catalyst.
the earliest and best known of the so-called sandwich compounds; these are derivatives of transition metals in which two organic ring systems are bonded symmetrically to the metal atom. Its molecular formula is (C5H5)2Fe.
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