“Click” Synthesis and Electrochemical Behavior of Ferrocenyl-Terminated Pyridylphenylene Dendrimers

• Published in: Macromolecules Vol. 53; no. 7; pp. 2735 - 2743
• Main Authors: Serkova, Elena S, Chamkin, Aleksandr A, Boldyrev, Konstantin L, Shifrina, Zinaida B
• Format: Journal Article
• Language: English
• Published: American Chemical Society 14-04-2020
• ISSN: 0024-9297; 1520-5835
• DOI: 10.1021/acs.macromol.0c00186

The synthetic approach toward ferrocenyl-terminated pyridylphenylene dendrimers based on tri- and tetrafunctional cores via the copper-catalyzed azide-alkyne cycloaddition is presented. Six dendrimers of three generations were synthesized and characterized using NMR spectroscopy, gel permeation chromatography (GPC), and elemental analysis. Cyclic voltammetry (CV) of the dendrimers shows a single quasi-reversible wave. The strong adsorption occurs onto Pt electrodes during CV studies in CH2Cl2, which is reflected by the high i pc/i pa ratio. The modified electrodes coated with a ferrocenyl-terminated dendrimer of the second and third generations are stable toward CH2Cl2 washing and multiple CV scanning and proved to be able to sense Cu+ ions.