Sand yielding complex

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Struktur des Ferrocens
structure of the Ferrocens
Struktur des Ferrocens nach Kealy
structure of the Ferrocens after Kealy
as sand yielding complexes strictly speaking are called in inorganic chemistry those main group or transition metal complexes, which two parallel, planar organic ligands to carry.

The first ever synthesized sand yielding complex was 1951 parallel from two working groups around Kealy and Paulson and/or. around Miller, Tebboth and Tremaine on different ways as coincidence product Ferrocen synthesized. Kealy and Paulson actually aimed at the synthesis of the purely organic Fulvalens. Both working groups gelagten first to the same structure suggestion, which could not be brought however with the analytic data in agreement. In the special the Infrarotspektrum of the structure suggestion should arise after Kealy several signals for the different CH valence oscillations, in agreement with the suggestion after Fischer and Wilkinson shows the connection however only one resonance eigentlich geplante Synthese des Fulvalens nach Kealy

the true nature of the Ferrocens finally became from Ernst Otto Fischer et al. and Geoffrey Wilkinson and Robert B. Woodward independently discovers. Wilkinson and Fischer received 1973 for this achievement and for their life's work within the range of inorganic chemistry to the Nobelpreis for chemistry. Woodward, which did not become 1973 a partner of the price, protested in later admits become letter to the Nobelkomitee in Stockholm against this ignoring of its contribution. It had zugewanndt itself however after the discovery of the Ferrocens again the art of the organic synthesis and for its achievements in this area 1965 with the Nobelpreis had been already considered.

Long time was limited the research to a large extent on the Cyclopentadienylliganden arising in the Ferrocen.

Sand yielding complexes are used today particularly in the asymmetrical catalysis for the production of stereoisomer-pure connection and exhibit in form of its polymers promising beginnings for new semiconducting materials.


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