Diberyllocene, a stable compound of Be(I) with a Be-Be bond

• 成果类型: Article
• 署名作者: Boronski, Josef T.; Crumpton, Agamemnon E.; Wales, Lewis L.; Aldridge, Simon
• 署名单位: University of Oxford
• 刊物名称: SCIENCE
• ISSN/ISSBN: 0036-13718
• DOI: 10.1126/science.adh4419
• 发表日期: 2023-06-16
• 页码: 1147-1149
• 关键词: beryllium; complexes; hydride; metal; state; reactivity; chemistry; dimers; mg

摘要

The complex diberyllocene, CpBeBeCp (Cp, cyclopentadienyl anion), has been the subject of numerous chemical investigations over the past five decades yet has eluded experimental characterization. We report the preparation and isolation of the compound by the reduction of beryllocene (BeCp2) with a dimeric magnesium(I) complex and determination of its structure in the solid state by means of x-ray crystallography. Diberyllocene acts as a reductant in reactions that form beryllium-aluminum and beryllium-zinc bonds. Quantum chemical calculations indicate parallels between the electronic structure of diberyllocene and the simple homodiatomic species diberyllium (Be2).