Complexing properties of pyrenyl-appended calix[4]arenes towards lanthanides and transition metal cations

Amel Ben Othman, Besma Mellah, Rym Abidi, Jong Seung Kim, Yang Kim, Jacques Vicens

Research output: Contribution to journalArticle

Abstract

The binding properties of pyrenyl-appended calix[4]arenes 2–4 towards lanthanide and transition metal cations were investigated by spectrophotometric data processing, which indicated that 2 forms mononuclear species with all the cations studied. The extraction power decreased toward ligands 2–3 except Co2+, then increased for ligand 4, which reflect the better ability of ligands 2 and 4 to complex and extract at the interface. Derivative 3 formed mono and binuclear species simultaneously with the trivalent cations from La3+ to Er3+ but only M2L species with Yb3+. In the case of 4, only M3L was detected for Yb3+ and only ML for La3+, with the complexation of the other cations tending to form mono-, bi- and tri-nuclear species.

Original languageEnglish
Pages (from-to)187-194
Number of pages8
JournalJournal of Inclusion Phenomena and Macrocyclic Chemistry
Volume97
Issue number3-4
DOIs
Publication statusPublished - 2020 Aug 1

Keywords

  • Calixarene
  • Complexation
  • Extraction
  • Lanthanide
  • Stability constant

ASJC Scopus subject areas

  • Food Science
  • Chemistry(all)
  • Condensed Matter Physics

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