Novel Clusters of Cobalt and Nickel with Organophosphorus Ligands

Abstract
A surprisingly easy access to the preparation of transition‐metal clusters is the reaction of MCl2 (M  Co, Ni) with PhP(SiMe3)2 and PPh3. In this way [Co43‐PPh)4(PPh3)4] and [Ni8(X)44‐PPh)6(PPh3)4] (XCl and CO) can be isolated. The paramagnetic complex with X  Cl contains 116 valence electrons and can be considered as a mixed‐valence cluster of Ni0 and Ni1+.
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