Superacidity of Boron Acids H2(B12X12) (X = Cl, Br)

被引:89
作者
Avelar, Amy [1 ]
Tham, Fook S. [1 ]
Reed, Christopher A. [1 ]
机构
[1] Univ Calif Riverside, Dept Chem, Ctr S&P Block Chem, Riverside, CA 92521 USA
基金
美国国家科学基金会;
关键词
arenium ions; carboranes; IR spectroscopy; superacidic systems; weakly coordinating anions; INORGANIC-CHEMISTRY; SALTS; PROTON; BONDS;
D O I
10.1002/anie.200900214
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Acid remarks: The anhydrous diprotic boron acids H2(B 12X12) (X=Cl, Br; see picture, B orange, X green) are the first examples of diprotic superacids and may be the strongest acids yet isolated. Both protons protonate benzene to give benzenium ion salts that are stable at room temperature. These acids owe their existence to the stability of the icosahedral B12 cluster with its dinegative charge buried beneath a layer of halide substituents. © 2009 Wiley-VCH Verlag GmbH & Co. KGaA.
引用
收藏
页码:3491 / 3493
页数:3
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