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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 Borenium ion ： ウィキペディア英語版 Borenium ion A borenium ion in chemistry is a trivalent boron cation of the type R1R2BL where R is a substituent and L a ligand. It is one of several boron cations: borinium cations are divalent boron cations with the general structure R1R2B and boronium cations are tetravalent (R1R2BL1L2) with two ligands. The positive charge can reside on the ligand itself or with a ligand to boron dative bond on the boron atom. Borenium ions are of some interest to academic research.〔''The chemistry of borinium and borenium ions'' P. Koelle and H. Noeth Chemical Reviews 1985 85 (5), 399-418 〕〔Piers, W. E., Bourke, S. C. and Conroy, K. D. (2005), ''Borinium, Borenium, and Boronium Ions: Synthesis, Reactivity, and Applications.'' Angew. Chem. Int. Ed., 44: 5016–5036. 〕〔''Cationic Tricoordinate Boron Intermediates: Borenium Chemistry from the Organic Perspective'' Timothy S. De Vries, Aleksandrs Prokofjevs, and Edwin Vedejs Chemical Reviews Article ASAP 〕 The first borenium ion was observed in 1970 by Ryschkewitsch & Wiggins.〔''Trigonal boron cation'' George E. Ryschkewitsch and J. W. Wiggins Journal of the American Chemical Society 1970 92 (6), 1790-1791 〕 They found that aluminum chloride could only dissolve in methylene chloride in the presence of the adduct of 4-picoline and boron trichloride. A positive charge on boron was then inferred from proton NMR. :Borenium ion formation Ryschkewitsch & Wiggins 1970 ==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「Borenium ion」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.