Arene Coordination to Yttrium(Ⅲ) via Carbon-Carbon Bond Formation

摘要

In contrast to the Hein chemistry discussed above, the biaryl couplings reported here do not involve any formal redox chemistry, since the yttrium center starts as Y(III) and finishes in the same oxidation level. This contrasts other lanthanoid arene systems that have been prepared via reductive sequences or by metal vapor techniques. Phenyl groups bridging lanthanoid metals are not well established, a few ex- amples of mononuclear σ-aryl complexes are known for yttrium but few have been structurally characterized. Reactivity studies of these dinuclear bis complexes are underway.