Synthesis and Structure of Gallium/Silicon Heterocycles with a Ga2Si2 and a Ga3Si Framework⋆
作者:Gerald Linti、Wolfgang Köstler、Alexander Rodig
DOI:10.1002/(sici)1099-0682(199806)1998:6<745::aid-ejic745>3.0.co;2-u
日期:1998.6
hypersilylgallium(I). For X = Cl an anionic 1,2,3,4-silatrigalletanate, a four-membered heterocycle with a Ga3 unit, is isolated. These primary examples of gallium/group-14 heterocycles have been investigated by NMR spectroscopy as well as by X-ray single-crystal structure analysis. In addition, the synthesis and structure of bis(hypersilyl)gallium chloride is described. This monomeric molecule has a nearly T-shaped
Ga2X4·2 二恶烷与四当量的 (Me3Si)3SiLi(thf)3(= 超甲硅烷基锂)的反应得到 X = Br 的 1,3,2,4-二硅二卤代烷和四面体超甲硅烷基镓 (I)。对于 X = Cl,分离出阴离子 1,2,3,4-silatrigalletate,一种具有 Ga3 单元的四元杂环。这些镓/14 族杂环的主要例子已经通过核磁共振光谱以及 X 射线单晶结构分析进行了研究。此外,还描述了双(超甲硅烷基)氯化镓的合成和结构。这种单体分子具有近乎 T 形的 Si2GaCl 骨架。