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20 Euros Ernst Otto Fischer
| Issuer | Bundesrepublik Deutschland (Federal Republic of Germany) |
|---|---|
| Year | 2018 |
| Type | Non-circulating coin |
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| Obverse script | Latin |
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| Reverse description | A stylized artistic representation of a double-cone sandwich complex (metallocene) occupies the central field, depicting two cyclopentadienyl rings flanking a central metal atom in a geometric, abstract composition evoking the organometallic structures for which Ernst Otto Fischer was awarded the Nobel Prize in Chemistry in 1973. The design conveys the three-dimensional molecular architecture of metallocene chemistry through bold linear forms. The legend 'ERNST OTTO FISCHER' arcs along the upper periphery, while '100. GEBURTSTAG' is inscribed along the lower periphery. A portrait or stylized likeness of Fischer may accompany the molecular motif in the field. |
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| Additional information |
Ernst Otto Fischer shared the 1973 Nobel Prize in Chemistry with Geoffrey Wilkinson for their independent work on organometallic sandwich compounds — Fischer in Munich, Wilkinson in London, arriving at the same structural insights through separate research programs. The German federal commemorative coin program has long favored scientists of this caliber, and Fischer, who spent virtually his entire career at the Technische Universität München, is a straightforward choice for that canon.
The .925 silver issues in this series are struck by the five German federal mints, each identifiable by its mint mark — A, D, F, G, or J — making a complete five-mint set a reasonable collecting target within the type.