Semicobaltate -Alkalimetall-Träger in Kohlenwasserstoffen Darstellung, Eigenschaften und Struktur von K[Co(C2H4)(PMe3)3]2 / Semicobaltates -Alkali Metal Carriers in Hydrocarbons Synthesis, Properties, and Structure of K[Co(C2H4)(PMe3)3]2
Open Access
- 1 May 1980
- journal article
- Published by Walter de Gruyter GmbH in Zeitschrift für Naturforschung B
- Vol. 35 (5) , 614-619
- https://doi.org/10.1515/znb-1980-0520
Abstract
Semicobaltates (Co-1/2) containing olefin and trimethylphosphane ligands are synthe-sized from Co(olefin)(PMe3)3 and potassium metal. The X-ray crystal structure determination of the title compound shows that the unit cell contains two K atoms in equal ionic contact with the ethylene ligands of four Co(C2H4)(PMe3)3 complex units, two of which are interacting with both K atoms. In solution the semicobaltates exist in hydrocarbon solvents under argon only, while in contrast under ethylene or nitrogen atmospheres or in donor solvents disproportionation occurs to give Co(O) and Co(-I) species. AllgemeinesKeywords
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