Bonding modes of stanna-closo-dodecaborate: eta1(Sn) to eta3(BH) rearrangement reactions in zwitterionic stanna-closo-dodecaborate ruthenium complexes.
Bonding modes of stanna-closo-dodecaborate: eta1(Sn) to eta3(BH) rearrangement reactions in zwitterionic stanna-closo-dodecaborate ruthenium complexes.
复制标题
锡-近十二硼酸的键合模式：两性离子锡-近十二硼酸钌配合物中的eta1(Sn)到eta3(BH)重排反应。
DOI：
10.1039/b517138e
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发表时间：
2006
影响因子：
4
通讯作者：
L. Wesemann
中科院分区：
文献类型：
--
作者：
Torben Gädt;K. Eichele;L. Wesemann
锡-邻十二硼酸盐 [Bu3MeN]2[SnB11H11] 与二聚钌配合物 [Ru2(mu-Cl)3(triphos)2]Cl (triphos = {MeC(CH2PPh2)3}) 在回流乙腈中反应，生成两性离子化合物 [Ru(SnB11H11)(MeCN)2(triphos)] (4)通过单晶X射线衍射分析和固态核磁共振波谱对其进行了表征。在丙酮中回流两性离子会导致 eta1(Sn) 重排至 eta3(BH)，形成 [Ru(SnB1)H11)(triphos)] (5)，其结构已通过溶液和固态中的 X 射线衍射和多核 NMR 光谱证实。此外，还描述了两种异构两性离子 fac- 和 mer-[Ru(SnB11H11)(dppb)(MeCN)3] (6a, 6b) 及其重排反应以及 NMR 性质。
Reaction of the stanna-closo-dodecaborate salt [Bu3MeN]2[SnB11H11] with the dimeric ruthenium complex [Ru2(mu-Cl)3(triphos)2]Cl (triphos = {MeC(CH2PPh2)3}) in refluxing acetonitrile yields the zwitterionic compound [Ru(SnB11H11)(MeCN)2(triphos)] (4) which has been characterized by single-crystal X-ray diffraction analysis and solid-state NMR spectroscopy. Refluxing the zwitterion in acetone leads to an eta1(Sn) to eta3(BH) rearrangement with formation of [Ru(SnB1)H11)(triphos)] (5) whose structure has been confirmed by X-ray diffraction and multinuclear NMR spectroscopy in solution and in the solid state. Furthermore, two isomeric zwitterions fac- and mer-[Ru(SnB11H11)(dppb)(MeCN)3] (6a, 6b) and their rearrangement reactions as well as their NMR properties are described.