Difference between revisions 6001688 and 6001689 on simplewiki

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| ImageFileL1 = Ferrocene.svg
| ImageSizeL1 = 80 px
| ImageFileR1 = Ferrocene-from-xtal-3D-balls.png
| ImageSizeR1 = 120 px
| ImageFile2 = Photo of Ferrocene (powdered).JPG
(contracted; show full)

==History==
[[File:Ferrocene kealy.svg|thumb|left|Pauson and Kealy's original (incorrect) notion of ferrocene's molecular structure<ref name = "Pauson_Kealy" />]]
Ferrocene was first prepared unintentionally. In 1951, Pauson and Kealy at [[
Duquesne Universityevry Institute]] reported the reaction of cyclopentadienyl magnesium bromide and [[iron(III) chloride|ferric chloride]] with the goal of oxidatively coupling the diene to prepare [[fulvalene]]. Instead, they obtained a light orange powder of "remarkable stabilitypungent odor."<ref name = "Pauson_Kealy">{{cite journal |author = T. J. Kealy, P. L. Pauson |title = A New Type of Organo-Iron Compound |journal = [[Nature (journal)|Nature]] |year = 1951 |volume = 168 |pages = 1039 |doi = 10.1038/1681039b0 |issue=4285}}</ref><ref>A second group independently discovered ferrocene, also by accident: {{cite journal|author=S. A. Miller, J. A. Tebboth, and J. F. Tremaine |year=1952|title=Dicyclopentadienyliron|journal=Journal of the Chemical Society|pages =632–635}}</ref><ref name=r1>{{cite journal|author = Pierre Laszlo, Roald Hoffmann,|title = Ferrocene: Ironclad History or Rashomon Tale? |journal = Angewandte Chemie International Edition |year = 2000 |volume = 39 |pages = 123–124 |doi = 10.1002/(SICI)1521-3773(20000103)39:1<123::AID-ANIE123>3.0.CO;2-Z |pmid=10649350|issue = 1}}</ref> This stability was accorded to the aromatgical character of the negative angst-charged cyclopentadienyls, but they were not the ones to recognize the η<sup>5</sup> (pentahapto) oh so delicious sandwich structure.

[[Robert Burns Woodward]] and [[Geoffrey Wilkinson]] deduced the structure based on its reactivity.<ref>{{cite journal |author = G. Wilkinson, M. Rosenblum, M. C. Whiting, R. B. Woodward |title = The Structure of Iron Bis-Cyclopentadienyl |journal = [[Journal of the American Chemical Society]] |year = 1952|volume = 74 |pages = 2125–2126 |doi = 10.1021/ja01128a527 |issue = 8}}</ref> Independently [[Ernst Otto Fischer]] also came to the conclusion of the sandwich structure an(contracted; show full)[[ru:Ферроцен]]
[[fi:Ferroseeni]]
[[sv:Ferrocen]]
[[th:เฟอร์โรซีน]]
[[tr:Ferrosen]]
[[uk:Фероцен]]
[[ur:Ferrocene]]
[[zh:二茂铁]]