Schiller Jana, Peresypkina Eugenia, Virovets Alexander V, Scheer Manfred
Institute of Inorganic Chemistry, Dept. of Chemistry and Pharmacy, University of Regensburg, Universitätsstr. 31, 93053, Regensburg, Germany.
Angew Chem Int Ed Engl. 2020 Aug 3;59(32):13647-13650. doi: 10.1002/anie.202004988. Epub 2020 May 26.
An unprecedented cationic supramolecule [(Cp''Fe(η -P )) {CuNCMe} ] 2.66 nm in diameter was selectively isolated as a salt of the weakly coordinating anion [Al{OC(CF ) } ] for the first time and characterized by X-ray structure analysis, PXRD, NMR spectroscopy, and mass spectrometry. Its metal-deficient core contains the lowest possible number of Cu atoms to connect 12 pentaphosphaferrocene units, providing a supramolecule with fullerene topology which, topologically, also represents the simplest homologue in the family of metal-deficient pentaphosphaferrocene-based supramolecules [{Cp Fe(η -P )} (CuX) ]. The 12 vacant metal sites between the cyclo-P rings, the largest number attained to date, make this compound a facile precursor for potential inner and outer modifications of the core as well as for functionalization via the substitution of labile acetonitrile ligands.
首次选择性分离出一种直径为2.66 nm的前所未有的阳离子超分子[(Cp''Fe(η -P )) {CuNCMe} ]，它是弱配位阴离子[Al{OC(CF ) } ]的盐，并通过X射线结构分析、粉末X射线衍射（PXRD）、核磁共振光谱和质谱对其进行了表征。其贫金属核心含有连接12个五磷杂二茂铁单元所需的最少铜原子数，提供了一种具有富勒烯拓扑结构的超分子，从拓扑学角度来看，它也是贫金属五磷杂二茂铁基超分子[{Cp Fe(η -P )} (CuX) ]家族中最简单的同系物。环磷环之间的12个空金属位点是迄今为止达到的最大数量，这使得该化合物成为核心潜在内外修饰以及通过取代不稳定乙腈配体进行功能化的便捷前体。
