Technetium and rhenium heterocomplexes containing the diphenylphosphinoferrocenyl fragment

Reactions of dppf with labile technetium and rhenium precursors such as [M(N)Cl4]- and [M(NPh)Cl3(PPh3)2] yield the monomeric mono-substituted [M(N)Cl2(dppf)] and [M(NPh)Cl3(dppf)] complexes, where the diphosphinoferrocenyl fragment coordinates on the equatorial plane of a distorted square pyramid or of a distorted octahedron, respectively.