Abstract : Thermolysis of hexakis(2,6-diethylphenyl)cyclotristannane in xylenes at 200 C provides blue violet, crystalline 2,2,4,4,5,5-hexakis(2,6- diethylphenyl)pentastanna(1.1.1)propellane, 1, in 13% yield and hexakis(2,6- diethylphenyl)distannane, 2, after purification by column chromatography. Analytically pure 1 has been fully characterized by spectroscopic methods, including 119 Sn NMR, and a 2:1 mixed crystal of 1 and 2 has been crystallographically analyzed. Compound 2 has a Sn-Sn bond length of 3.05 A which is the longest tin tin bond length ever observed for a polystannane (previous longest value is 2.97 A).

中文翻译：

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2,2,4,4,5,5-Hexakis(2,6-diethylphenyl)pentastanna[1.1.1]propellane：表征和分子结构

摘要 : 六（2,6-二乙基苯基）环三锡烷在二甲苯中于 200 C 的热解得到蓝紫色结晶 2,2,4,4,5,5-六（2,6-二乙基苯基）五锡（1.1.1）推进烷, 1, 13% 产率和六(2,6-二乙基苯基)二锡烷, 2, 经柱层析纯化后。分析纯 1 已通过光谱方法（包括 119 Sn NMR）进行了充分表征，并且已对 1 和 2 的 2:1 混合晶体进行了晶体学分析。化合物 2 的 Sn-Sn 键长为 3.05 A，这是迄今为止观察到的聚锡烷最长的锡键长度（之前的最长值为 2.97 A）。