The HETTAP Approach: Self-Assembly and Metal Ion Sensing of Dumbbell-Shaped Molecules and Clip Molecules
作者:Michael Schmittel、Venkateshwarlu Kalsani、Prasenjit Mal、Jan W. Bats
DOI:10.1021/ic060403l
日期:2006.8.1
terpyridine-phenanthroline zinc(II) complex motif, conceived along the HETTAP concept, allows the preparation of a set of multicomponent supramolecular dumbbell and clip assemblies from various bisterpyridines. All assemblies show a notable luminescence at 350-400 nm. The formation of dumbbell [Zn2(1b)2(2b)]4+ is convincingly demonstrated from the X-ray crystal structure analysis. Both dumbbell [Zn2(1b)2(2b)]4+
沿HETTAP概念构思的五配位的叔吡啶-菲咯啉锌(II)复杂基序允许从各种二吡啶类化合物制备一组多组分超分子哑铃和夹子组件。所有组件在350-400 nm处均显示出显着的发光。通过X射线晶体结构分析令人信服地证明了哑铃[Zn2(1b)2(2b)] 4+的形成。哑铃[Zn2(1b)2(2b)] 4+和夹子[Zn2(1d)(2b)] 4+都允许监视Hg2 +离子,这是由于由Zn2 +驱动的发射极有选择性地猝灭-> Hg2 +交换过程,而应变更大的夹子[Zn2(1d)(2c)] 4+没有进行这种金属交换,也没有显示出猝灭。因此,这些组装件仅由于超分子效应而表现出高度选择性的响应。