Monocyclooctatetraene uranium thiolate complexes. Crystal structure of [{U(η-C8H8)(µ-SPri)2}2]
Abstract
The monocyclooctatetraene uranium bis(thiolate) complexes [U(cot)(SR)2](cot =η-C8H8, R = Bun or Pri) were prepared by treating [U(cot)(BH4)2]1 with the corresponding thiol or NaSR reagent. The isopropane thiolate derivative is a dimer in the crystalline form, with four bridging SPri ligands, and this structure is retained in solution. Reaction of 1 with NaSBut afforded the anion [U(cot)(SBut)3]– which adopts a three-legged piano-stool configuration.