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|Section2= |Section3= |Section7= |Section4= }} Selenium hexafluoride is the inorganic compound with the formula SeF6. It is a colourless gas described as having a "repulsive" odor.〔(【引用サイトリンク】 Material Safety )〕 It is not widely encountered and has no commercial applications. ==Structure, preparation, and reactions== Like many compounds of selenium, SeF6 is hypervalent. The compound has octahedral molecular geometry with Se-F bond length 168.8 pm. SeF6 can be prepared from the elements or by the reaction of bromine trifluoride (BrF3) with selenium dioxide. The crude product is purified by sublimation. The relative reactivity of the hexafluorides of S, Se, and Te follows the order TeF6 > SeF6 > SF6, the latter being completely inert toward hydrolysis until high temperatures. SeF6 also resists hydrolysis.〔 The gas can be passed through 10% NaOH or KOH without change, but reacts with gaseous ammonia at 200 °C. 抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Selenium hexafluoride」の詳細全文を読む スポンサード リンク
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