A Polymeric Technetium Compound of the Composition [Tc2O3(C5Me5)]n

The polymeric “polydecker compounds” 1, not the expected [Cp*TcO3], are obtained upon reaction of [Cp*Tc(CO)3] with H2O2—in contrast to the analogous rhenium compound, which gives [Cp*ReO3]. In the structure of 1, three μ-oxo ligands each bridge two Tc atoms. The distance between the Tc atoms is extremely short. The coordination of the Tc atoms is completed by the Cp* rings (Cp* = C5Me5).