Enantiomerically Pure C<sub>2</sub>-symmetric Dinuclear Silver(I) and Copper(I) Complexes from a Bis(2,2´-bipyridine)-substituted 9,9´-Spirobifluorene Ligand
作者:Torsten Piehler、Arne Lützen
DOI:10.1515/znb-2010-0316
日期:2010.3.1
We have prepared a new bis(bipyridyl) ligand 1 based on a chiral 9,9´-spirobifluorene core in both enantiomerically pure forms. This ligand was found to undergo diastereoselective self-assembly to optically pure dinuclear coordination compounds upon coordination to copper(I) and silver(I) ions. Surprisingly, however, the resulting diastereomer was not found to be D2-symmetric which is usually found
我们已经制备了一种新的双(联吡啶)配体 1,其基于两种对映体纯形式的手性 9,9'-螺二芴核。发现该配体在与铜 (I) 和银 (I) 离子配位后经历非对映选择性自组装成光学纯双核配位化合物。然而,令人惊讶的是,没有发现所得的非对映异构体是 D2 对称的,这通常是在类似的双(二齿)配体中发现的,而是 C2 对称的,具有不同构型的金属中心。来自双(2,2'-联吡啶)-取代的9,9'-螺二芴配体的对映体纯C2-对称双核银(I)和铜(I)配合物的图形摘要