Electrochemically active phenylenediamine probes for transition metal cation detection - Sorbonne Université Access content directly
Journal Articles New Journal of Chemistry Year : 2011

Electrochemically active phenylenediamine probes for transition metal cation detection

Abstract

A novel family of tetraalkyl-p-phenylenediamine (TAPD)-based ligands has been efficiently prepared by reductive amination of heterocyclic aldehydes. The redox properties of these electrochemical active ligands change dramatically upon complexation of the transition metal cations Zn(2+), Ni(2+) and Cd(2+) leading to large oxidation potential shifts of up to 950 mV depending on the nature of the ligand. Complexes with a metal to ligand ratio of 1 : 2 were formed and (113)Cd NMR revealed an octahedral coordination sphere of the metal. All pyridyl derivatives show a distinct chemoselectivity (Zn(2+) > Cd(2+) > d Ni(2+)). The thiophenyl containing derivatives display a particularly high selectivity for zinc cations (Zn(2+) >> Ni(2+), Cd(2+)).
No file

Dates and versions

hal-00813138 , version 1 (15-04-2013)

Identifiers

Cite

Rihab Sahli, Noureddine Raouafi, Khaled Boujlel, Emmanuel Maisonhaute, Bernd Schöllhorn, et al.. Electrochemically active phenylenediamine probes for transition metal cation detection. New Journal of Chemistry, 2011, 35 (3), pp.709-715. ⟨10.1039/c0nj00638f⟩. ⟨hal-00813138⟩
254 View
0 Download

Altmetric

Share

Gmail Facebook X LinkedIn More