Investigations on the Reactivity of Li/Cl Phosphinidenoid Tungsten Complexes toward Various Iodine Compounds
Investigations on the Reactivity of Li/Cl Phosphinidenoid Tungsten Complexes toward Various Iodine Compounds
复制标题
Li/Cl膦类钨配合物对各种碘化合物的反应活性研究
DOI：
10.1021/om900443v
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发表时间：
2009
期刊：
影响因子：
2.8
通讯作者：
Pau Farràs
中科院分区：
文献类型：
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作者：
R. Streubel;A. Özbolat-Schön;M. Bode;Jörg Daniels;Gregor Schnakenburg;Francesc Teixidor;Clara Vinas;Albert Vaca;Ariadna Pepiol;Pau Farràs
报道了Li/Cl类膦W（CO）5配合物2a、b与各种碘化合物的反应性研究。瞬时生成的配合物2a，b与3-，9-和9，12-二碘-碳硼烷3a-c没有选择性反应，而与C-碘取代的二碘-碳硼烷3d，e发生干净的转移碘化反应，从而在2a的情况下得到氯（碘）膦配合物6。配合物2a还与碘（苯基）乙炔发生竞争反应生成配合物6a、8和9。氯（碘）膦配合物6a，b的独立途径是配合物2a，b与元素碘在低温下反应。所有化合物均通过元素分析、多核NMR、IR、MS研究以及单晶X-射线衍射进行了明确表征。
Reactivity studies of Li/Cl phosphinidenoid W(CO)5complexes2a,btoward various iodine compounds are reported. Transiently generated complexes2a,byielded no selective reactions with 3-, 9-, and 9,12-diiodoo-carbaboranes3a−c, whereas clean transfer-iodination reaction occurred withC-iodo-substitutedo-carbaboranes3d,e, thus giving chloro(iodo)phosphane complex6ain the case of2a. Complex2awas also reacted with iodo(phenyl)acetylene to yield complexes6a,8, and9in competing reactions. An independent pathway to chloro(iodo)phosphane complexes6a,bwas reaction of complexes2a,bwith elemental iodine at low temperature. All compounds were unambiguously characterized by elemental analysis, multinuclear NMR, IR, MS studies, and, in the case of6aand9, single-crystal X-ray diffraction.