A new precursor for organo-osmium complexes

The use of potassium osmate, K-2[OsO2(OH)(4)], as a precursor for some cyclopentadienyl-osmium complexes is described. The X-ray structures of OsBr(PPh3)(2)CP, OsCl(dppe)Cp and OsX(dppe)Cp* (X = Cl, Br) are reported. (c) 2006 Elsevier B.V. All rights reserved.