Synthesis of Arene-Soluble Mixed-Metal Uranium/Zirconium Complexes Using the Dizirconium Nonaisopropoxide Ligand

摘要

The utility of polydentate monoanionic [Zr_2(O~iPr)_9]~- (dzni) in generating arene-soluble, mixed-metal Zr/U complexes is described. K[Zr_2(O~iPr)_9] reacts readily with UI_3(THF)_4 to form [Zr_2(O~iPr)_9]UI_2(THF), 1, in > 90% yield. The integrity of the {[Zr_2(O~iPr)_2(DME)]_2, 3, was isolated, did not form U(IV)-dzni complexes, and only the ligand exchange product, [UCl_2(O~iPr)_2(DME)]_2, 3, was isolated. The effect of the dzni ligand on the electrochemistry and near-infrared spectroscopy of U(III) is also described.