STRUCTURAL STUDIES OF BRIDGED BIMETALLIC NEODYMIUM AND URANIUM PENTAMETHYLCYCLOPENTADIENYL COMPLEXES: {[(C5Me5)2Nd(THF)l2[μ-Cl}{BPh4} and [(C5Me5)2UCl]2[μ-O

Abstract

The solid state structure of {[C5Me5)2Nd(THF)]2[μ-Cl]}{BPh4} C6H6, 1, consists of a cation with THF-solvated decamethylneodymocene units connected symmetrically by a chloride bridge with 2.839(3) Å Nd-(μ-Cl) bonds and a 174.09(10)° Nd-Cl-Nd angle. The {BPH4}-anion is non-coordinating. The structure of [(C5Me5)2UC1]2[μ-O] C7H8, 2, consists of two chloride ligated [(C5Me5]2U] units bridged symmetrically by a single oxide ion with 2.129(5) Å U-(μ-O) distances and a 167.1(2)° U-O-U angle. Both complexes have normal metrical parameters in the (C5Me5)2M metallocene units.