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首页> 外文期刊>Dalton transactions: An international journal of inorganic chemistry >Tin sulfide and selenide clusters soluble in organic solvents with the core structures of Sn4S6 and Sn4Se6
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Tin sulfide and selenide clusters soluble in organic solvents with the core structures of Sn4S6 and Sn4Se6

机译：溶于有机溶剂的硫化锡和硒化锡团簇具有Sn4S6和Sn4Se6的核心结构

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摘要

Reactions of LSnCl (1) (L = N(2,6-iPr(2)C(6)H(3))(SiMe3)) with sulfur and selenium, respectively under mild conditions yielded two tin chalcogenide clusters. Surprisingly the tin atoms of the L4Sn4S6 (2) and L4Sn4Se6 (3) clusters are oxidized from Sn(II) of the precursor to Sn(IV) of the products under concomitant reduction of elemental sulfur and selenium to sulfide and selenide, respectively. The released chlorine radicals from the precursor LSnCl (1) react under oxidative addition with another LSnCl molecule to yield the side product LSnCl3 (4). The soluble nature of clusters 2 and 3 in organic solvents is a unique property of this class of compounds and makes them suitable for reactions in organic solvents. Compounds 2 and 3 were characterized by single crystal X-ray diffraction and multinuclear NMR investigations. Furthermore in ROP polymerization, the two products show high catalytic activity. For the first time a tin selenide compound functions in ROP catalysis.
机译：LSnCl（1）（L = N（2,6-iPr（2）C（6）H（3））（SiMe3））与硫和硒的反应分别在温和条件下产生两个硫族锡簇。令人惊讶地，在元素硫和硒分别还原为硫化物和硒化物的情况下，L4Sn4S6（2）和L4Sn4Se6（3）簇的锡原子从前体的Sn（II）氧化为产物的Sn（IV）。从前体LSnCl（1）释放的氯自由基在氧化加成下与另一个LSnCl分子反应，生成副产物LSnCl3（4）。簇2和3在有机溶剂中的可溶性质是这类化合物的独特性质，使其适合在有机溶剂中反应。通过单晶X射线衍射和多核NMR研究表征化合物2和3。此外，在ROP聚合中，两种产物显示出高催化活性。硒化锡化合物首次在ROP催化中起作用。

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