Copper(I) Siloxides – Aggregated Solid‐State Structures, Cu–Cu Interactions and Dynamic Solution Behavior
作者:Fabian Schax、Christian Limberg、Clemens Mügge
DOI:10.1002/ejic.201200294
日期:2012.10
to octanuclear compounds [Cu8L14] (1), [Cu8L24] (2), and [Cu8L12L*2] [L* = O(Ph2SiO)4] (3), which were characterized by single-crystal X-ray diffraction analysis as well as by solution NMR spectroscopy. The crystal structures revealed that all the compounds are composed of Cu4O4 moieties featuring short Cu–Cu distances that can be discussed in terms of cuprophilic interactions. Two such units are linked
硅氧烷-二醇 HO(Ph2SiO)2H、1,1,3,3-四苯基二硅氧烷-1,3-二醇 (L1H2)、HO(iPr2SiO)2H、1,1,3,3-四异丙基二硅氧烷-1,3 的反应-二醇 (L2H2) 和 HO(Ph2SiO)3H、1,1,3,3,5,5-六苯基三硅氧烷-1,5-二醇 (L3H2) 与两当量的 CunMesn 生成八核化合物 [Cu8L14] (1) 、[Cu8L24] (2) 和 [Cu8L12L*2] [L* = O(Ph2SiO)4] (3),通过单晶 X 射线衍射分析和溶液核磁共振光谱对其进行表征。晶体结构表明,所有化合物均由具有短 Cu-Cu 距离的 Cu4O4 部分组成,可以根据亲铜相互作用进行讨论。两个这样的单元通过 1 和 2 中的四个二硅氧烷单元连接,在 3 中它们通过两个当量的 (L1)2- 连接。3 的形成需要三硅氧烷-1,5-二醇的歧化以得到二硅氧烷-1,3-二醇和四硅氧烷-1