Flash Communication: Well-Defined Paramagnetic Polyhydrido-Bridged Iron-Iridium Clusters.

ABSTRACT: Polyhydrido transition metal complexes are a constant source of interest due to their variety in bonding and reactivity. Yet, well-defined paramagnetic polyhydrido systems are relatively rare given their instability. Herein, we extend the protonolysis reactivity of the Brønsted acidic Cp*IrH₄ polyhydride toward transition metal silylamides. Specifically, we report the synthesis and characterization of a polyhydrido diiron tetrairidium paramagnetic cluster, [Fe-(Cp*IrH₃)₂]₂, 1, from the reaction between Fe-(HMDS)₂(THF) and Cp*IrH₄. Attempted reduction of this complex with potassium graphite yields instead an anionic species, K-[Fe-(Cp*IrH₃)₃], 2, in a proposed disproportionation mechanism.

SUBMITTER: Dubrawski Z 

PROVIDER: S-EPMC12522137 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature