Loading Linear Arrays of Cu-II Inside Aromatic Amide Helices

Wang, Jinhua; Wicher, Barbara; Mendez-Ardoy, Alejandro; Li, Xuesong; Pecastaings, Gilles; Buffeteau, Thierry; Bassani, Dario M.; Maurizot, Victor und Huc, Ivan (2021): Loading Linear Arrays of Cu-II Inside Aromatic Amide Helices. In: Angewandte Chemie-International Edition, Bd. 60, Nr. 34: S. 18461-18466

Abstract

The very stable helices of 8-amino-2-quinolinecarboxylic acid oligoamides are shown to uptake Cu-II ions in their cavity through deprotonation of their amide functions with minimal alteration of their shape, unlike most metallo-organic structures which generally differ from their organic precursors. The outcome is the formation of intramolecular linear arrays of a defined number of Cu-II centers (up to sixteen in this study) at a 3 angstrom distance, forming a molecular mimic of a metal wire completely surrounded by an organic sheath. The helices pack in the solid state so that the arrays of Cu-II extend intermolecularly. Conductive-AFM and cyclic voltammetry suggest that electrons are transported throughout the metal-loaded helices in contrast with hole transport observed for analogous foldamers devoid of metal ions.

• Dokumententyp: Zeitschriftenartikel
• Fakultät: Chemie und Pharmazie > Department für Pharmazie - Zentrum für Pharmaforschung
• Themengebiete: 500 Naturwissenschaften und Mathematik > 540 Chemie
• ISSN: 1433-7851
• Sprache: Englisch