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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Technetium(VII) oxide ： ウィキペディア英語版 Technetium(VII) oxide |Section2= |Section3= |Section7= }} Technetium(VII) oxide is the chemical compound with the formula Tc2O7. This yellow volatile solid is a rare example of a molecular binary metal oxide, the other examples being RuO4, OsO4, and the unstable Mn2O7. It adopts a centrosymmetric corner-shared bi-tetrahedral structure in which the terminal and bridging Tc-O bonds are 167pm and 184 pm respectively and the Tc-O-Tc angle is 180°. Technetium(VII) oxide is prepared by the oxidation of technetium at 450–500 °C: :2 Tc + 3.5 O2 → Tc2O7 It is the anhydride of pertechnic acid and the precursor to sodium pertechnetate: :Tc2O7 + 2 NaOH → 2 NaTcO4 + H2O ==References== 〔 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「Technetium(VII) oxide」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.