Holloway Lauren R, Young Michael C, Beran Gregory J O, Hooley Richard J
University of California - Riverside , Department of Chemistry , Riverside , CA 92521 , USA . Email:
Chem Sci. 2015 Aug 1;6(8):4801-4806. doi: 10.1039/c5sc01689d. Epub 2015 Jun 2.
Subtle differences in ligand coordination angle and rigidity lead to high fidelity sorting between individual components displaying identical coordination motifs upon metal-mediated self-assembly. Narcissistic self-sorting can be achieved between highly similar ligands that vary minimally in rigidity and internal coordination angle upon combination with Fe(ii) ions and 2-formylpyridine. Selective, sequential cage formation can be precisely controlled in a single flask from a mix of three different core ligands (and 33 total components) differing only in the hybridization of one group that is uninvolved in the metal coordination process.
配体配位角和刚性的细微差异导致在金属介导的自组装过程中,具有相同配位基序的各个组分之间实现高保真分类。当与亚铁离子和2-甲酰基吡啶结合时,在刚性和内配位角上差异极小的高度相似配体之间可以实现自恋式自分类。在单个烧瓶中,可以从三种仅在不参与金属配位过程的一个基团的杂化方式上不同的不同核心配体(共33种组分)的混合物中精确控制选择性、顺序性笼状结构的形成。