Unprecedented oxidative addition and metal-only Lewis pair chemistry of antimony trihalides.
Unprecedented oxidative addition and metal-only Lewis pair chemistry of antimony trihalides.
复制标题
三卤化锑前所未有的氧化加成和纯金属路易斯对化学。
作者：
H. Braunschweig;Rian D. Dewhurst;F. Hupp;J. Wolf
零价铂配合物[Pt（PCy 3）2 ]与SbF 3反应生成阳离子双铂锑鎓配合物[{（Cy 3 P）2 Pt}2（μ-SbF 2）]（+），这是第一个含有以锑为中心的刘易斯酸的非负载金属刘易斯对。相反，SbCl 3与[Pt（PCy 3）2 ]发生氧化加成，生成二卤代锑基配合物反式-[PtCl（SbCl 2）（PCy 3）2 ]，这是锑-卤化物键与过渡金属氧化加成的第一个例子。
Reaction of the zero-valent platinum complex [Pt(PCy3 )2 ] with SbF3 generates the cationic diplatinum stibenium complex [{(Cy3 P)2 Pt}2 (μ-SbF2 )](+) , the first unsupported metal-only Lewis pair containing an antimony-centered Lewis acid. In contrast, SbCl3 undergoes oxidative addition to [Pt(PCy3 )2 ], resulting in the dihalostibanyl complex trans-[PtCl(SbCl2 )(PCy3 )2 ], the first example of oxidative addition of an antimony-halide bond to a transition metal.