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Metal-Deficient Supramolecule Based on a Fivefold-Symmetric Building Block.

ABSTRACT: An unprecedented cationic supramolecule [(Cp''Fe(?5 -P5 ))12 {CuNCMe}8 ]8+ 2.66?nm in diameter was selectively isolated as a salt of the weakly coordinating anion [Al{OC(CF3 )3 }4 ]- 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 [{CpR Fe(?5 -P5 )}12 (CuX)20-n ]. The 12 vacant metal sites between the cyclo-P5 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.

SUBMITTER: Schiller J

PROVIDER: S-EPMC7496182 | biostudies-literature | 2020 Aug

REPOSITORIES: biostudies-literature

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Metal-Deficient Supramolecule Based on a Fivefold-Symmetric Building Block.

Schiller Jana J Peresypkina Eugenia E Virovets Alexander V AV Scheer Manfred M

Angewandte Chemie (International ed. in English) 20200526 32

An unprecedented cationic supramolecule [(Cp''Fe(η5 -P5 ))12 {CuNCMe}8 ]8+ 2.66 nm in diameter was selectively isolated as a salt of the weakly coordinating anion [Al{OC(CF3 )3 }4 ]- 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 pentaphosphaferroc ...[more]

PMID: 32329940

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