Selective Synthesis of New Hexaalkylbicyclo[1.1.1]pentasilanes with Improved Solubility

Yukihiro Morino, S. Ishida, T. Iwamoto
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Abstract

Molecular structures and properties of molecular silicon clusters and oligo/polysilanes depend on the substituents on the silicon skeletons. Herein, we report the synthesis of new bicyclo[1.1.1]pentasilanes (BPS) having various alkyl substituents (ethyl, iBu, or 2‐ethylbutyl) at the bridge silicon atoms. All new BPS are characterized by NMR spectroscopy, MS spectrometry, and single crystal X‐ray diffraction (sc‐XRD) analysis. Introduction of longer alkyl groups and unsymmetrical substitution of alkyl groups at the bridge positions on the BPS skeleton substantially improve the solubility toward organic solvents, while the electronic properties are similar to each other.
选择性合成具有更好溶解性的新型六烷基双环[1.1.1]五硅烷
分子硅簇和低聚/多聚硅烷的分子结构和性质取决于硅骨架上的取代基。在此,我们报告了在桥硅原子上具有各种烷基取代基(乙基、iBu 或 2-乙基丁基)的新型双环[1.1.1]五硅烷(BPS)的合成。所有新型 BPS 均通过核磁共振光谱、质谱分析和单晶 X 射线衍射(sc-XRD)分析进行表征。在 BPS 骨架的桥上位置引入较长的烷基和烷基的非对称取代大大提高了对有机溶剂的溶解性,而电子特性则彼此相似。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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