organometallic chemistry of the alkaline earth elements has experienced a renaissance due in part to developments in ligand stabilization strategies. In order to expand the scope of redox chemistry known for magnesium and beryllium, we have synthesized a set of reduced magnesium and beryllium complexes and compared their resulting structural and electronic properties. The carbene-coordinated alkaline earth–halides
在过去的二十年中,部分由于
配体稳定化策略的发展,碱土
金属元素的有机
金属
化学经历了复兴。为了扩大
镁和
铍已知的氧化还原
化学的范围,我们合成了一组还原的
镁和
铍配合物,并比较了它们的结构和电子性能。卡宾配位的碱土
金属卤化物,(Et2
CAAC)MgBr 2(1),(SIPr)MgBr 2(2),(Et2
CAAC)BeCl 2(3)和(SIPr)BeCl 2(4)[ Et2
CAAC =
二乙基环(烷基)(
氨基)卡宾; 将SIPr = 1,3-双(2,6-二异丙基苯基)-4,5-二氢
咪唑-2-亚基]与α-二
亚胺[2,2-联
吡啶(bpy)或双(2,6-二异丙基苯基)结合-1,4-二氮杂
丁二烯(Dipp
DAB)]和适当的
化学计量的石墨酸
钾形成单还原和双还原的化合物(Et2
CAAC)MgBr(Dipp
DAB)(5),(Et2
CAAC)MgBr(bpy)(6),(Et2
CAAC)Mg(Dipp
DAB)(7),(Et2