Synthesis, characterisation, electronic spectra and electrochemical investigation of ferrocenyl-terminated dendrimers

Carolina Villalonga-Barber, Kalliopi Vallianatou, Spyros Georgakopoulos, Barry R. Steele, Maria Micha-Screttas, Efrat Levin, N. Gabriel Lemcoff

Research output: Contribution to journalArticlepeer-review

10 Scopus citations

Abstract

Two new dodecaferrocenyl dendrimers have been prepared using a sixfold Sonogashira coupling reaction and sixfold Huisgen cycloaddition, respectively. In addition, a dendron containing four ferrocenyl groups has been synthesised by conventional synthetic methods. Electrochemical studies have shown that all the ferrocene units are electrochemically equivalent. Moreover, when treated with acid these compounds form multicharged methylium near-infrared-absorbing dendritic dyes with a high extinction coefficient.

Original languageEnglish
Pages (from-to)3885-3895
Number of pages11
JournalTetrahedron
Volume69
Issue number19
DOIs
StatePublished - 13 May 2013

Keywords

  • Carbenium ion
  • Dendrimer
  • Ferrocenyl
  • Near-infrared

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