The Lewis acidity of trihaloboranes has now also been observed for tetrahalodiboranes, which bind halides to give hexahalodiborates — a new anion class.

中文翻译：

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回归本源

对于四卤代二硼烷，现在还观察到三卤硼烷的路易斯酸度，该四卤代二硼烷与卤化物结合生成六卤代二硼酸盐（一种新的阴离子类别）。