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ferrocene

American  
[fer-uh-seen] / ˈfɛr əˌsin /

noun

Chemistry.
  1. Also called dicyclopentadienyliron.  an orange, crystalline, water-insoluble coordination compound, (C 5 H5 ) 2 Fe, having a camphorlike odor: used chiefly as an antiknock agent for gasoline and as a catalyst.

  2. Also called dicyclopentadienyl metal.  any of a class of analogous compounds containing a metal other than iron, as nickel or osmium.


ferrocene British  
/ ˈfɛrəʊˌsiːn /

noun

  1. a reddish-orange insoluble crystalline compound. Its molecules have an iron atom sandwiched between two cyclopentadiene rings. Formula: Fe(C 5 H 5 ) 2

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of ferrocene

First recorded in 1950–55; ferro- + c(yclopentadi)ene

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

Last year, the group reported creating unusual 20 electron ferrocene derivatives.

From Science Daily May 22, 2026

One of the best known metallocenes is ferrocene, which helped earn its discoverers the 1973 Nobel Prize in Chemistry.

From Science Daily May 22, 2026

The researchers used ferrocene and tetrathiafulvalene as electron donor molecules, which were absorbed through the windows of the nanotube crystals.

From Science Daily Jun. 4, 2024

Technically, oxidizing the ferrocene enabled the binding of a Au0 to an Fe3+ center.

From Science Daily Mar. 5, 2024

In this state, they discovered that ferrocene could bind to the gold electrodes used to connect the molecule to the external circuitry.

From Science Daily Mar. 5, 2024

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