Issue 73, 2016, Issue in Progress

1,10-Phenanthroline-2,9-dicarboxamides as ligands for separation and sensing of hazardous metals

Abstract

1,10-Phenanthroline-2,9-dicarboxamides of various structures were synthesized and studied as ligands for separation and sensing of d- and f-metals. It was found that the extraction ability of dialkyl-diaryl-diamide to lanthanides decreases from La to Lu and extraction of Am is close to light lanthanides (La–Pr). Tetraalkyl-diamide are not selective to lanthanides, instead exhibiting moderate selectivity in Am/Ln separation. The diamide complexes with lanthanides and d-elements were synthesized and characterized by XRD analysis. All diamides demonstrated good extraction ability to environmentally hazardous metals (cadmium, lead and copper). The synthesized compounds were also tested as ionophores in PVC-plasticized potentiometric sensor membranes. Such sensors displayed no perceptible response to lanthanides but exhibited high sensitivity towards copper, zinc, cadmium and lead. These compositions can be considered as promising cross-sensitive sensors for multisensor systems.

Graphical abstract: 1,10-Phenanthroline-2,9-dicarboxamides as ligands for separation and sensing of hazardous metals

Supplementary files

Article information

Article type
Paper
Submitted
07 Apr 2016
Accepted
28 Jun 2016
First published
30 Jun 2016

RSC Adv., 2016,6, 68642-68652

1,10-Phenanthroline-2,9-dicarboxamides as ligands for separation and sensing of hazardous metals

M. Alyapyshev, J. Ashina, D. Dar’in, E. Kenf, D. Kirsanov, L. Tkachenko, A. Legin, G. Starova and V. Babain, RSC Adv., 2016, 6, 68642 DOI: 10.1039/C6RA08946A

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