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 and Huc, Ivan (2021): Loading Linear Arrays of Cu-II Inside Aromatic Amide Helices. In: Angewandte Chemie-International Edition, Vol. 60, No. 34: pp. 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.

• Item Type: Journal article
• Faculties: Chemistry and Pharmacy > Department of Pharmacy
• Subjects: 500 Science > 540 Chemistry
• ISSN: 1433-7851
• Language: English