Self-Assembly of M24L48 Polyhedra Based on Empirical Prediction

Enantiomerically pure trinuclear helicates via diastereoselective self-assembly and characterization of their redox chemistry.

A tris(bipyridine) ligand 1 with two BINOL (BINOL = 2, 2′-dihydroxy-1, 1′-binaphthyl) groups has been prepared in two enantiomerically pure forms. This ligand undergoes completely diastereoselective self-assembly into D2-symmeteric double-stranded trinuclear helicates upon coordination to copper(I) and silver(I) ions and to D3-symmetric triple-stranded trinuclear helicates upon coordination to copper(II), zinc(II), and iron(II) ions as demonstrated by mass spectrometry, NMR and CD spectroscopy in combination with quantum chemical calculations and X-ray diffraction analysis. According to the calculations, the single diastereomers that are formed during the self-assembly process are strongly …

CCDC 1003004: Experimental Crystal Structure Determination

Related Article: Christoph Gütz , Rainer Hovorka , Niklas Struch , Jens Bunzen , Georg Meyer-Eppler , Zheng-Wang Qu , Stefan Grimme , Filip Topić, Kari Rissanen, Mario Cetina, Marianne Engeser, Arne Lützen|2014|J.Am.Chem.Soc.|136|11830|doi:10.1021/ja506327c