کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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1313125 | 975532 | 2006 | 9 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Synthesis and characterization of thiocyanato and chlorodioxo tungsten(VI) compounds: Comparative oxygen atom transfer capability with molybdenum analogs Synthesis and characterization of thiocyanato and chlorodioxo tungsten(VI) compounds: Comparative oxygen atom transfer capability with molybdenum analogs](/preview/png/1313125.png)
Four new tungsten-oxo(VI) complexes have been synthesized, characterized spectroscopically and their molecular structure established by X-ray diffraction analysis. These bear identical environment as previously reported molybdenum-oxo(VI) complexes, which allowed direct comparison of their spectroscopic properties. Their capability as oxygen atom transfer agents was found to be significantly lower than their molybdenum analogs.
The synthesis, characterization and X-ray structure determination of four new W(VI) complexes is described: tetraphenylphosphonium tetrathiocyanatodioxotungstate(VI), dioxodithiocyanato-4,4′-tert-butyl-2,2′-bipyridyltungsten(VI), dioxodichloro-4,4′-tert-butyl-2,2′-bipyridyltungsten(VI) and bis[cis-dioxo-thiocyanato-4,4′-di-tert-butyl-2,2′-bipyridine]μ-oxo-ditungsten(VI). Their catalytic activity in oxygen atom transfer process is reported.Figure optionsDownload as PowerPoint slide
Journal: Inorganica Chimica Acta - Volume 359, Issue 1, 1 January 2006, Pages 81–89