New supramolecular compounds: the complexes of nickel(II), copper(II), cobalt(II), cadmium(II) and zinc(II) with anti- [N-(4-aminophenyl)aza-15-crown-5]-4-(phenoxy)phenylglyoxime ligand

Ozpinar K., DEVECİ P., Kilinc M., ÖZCAN E., Karaman B. D., Karaarslan H., ...More

JOURNAL OF INCLUSION PHENOMENA AND MACROCYCLIC CHEMISTRY, vol.82, no.3-4, pp.407-415, 2015 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 82 Issue: 3-4
  • Publication Date: 2015
  • Doi Number: 10.1007/s10847-015-0503-1
  • Journal Name: JOURNAL OF INCLUSION PHENOMENA AND MACROCYCLIC CHEMISTRY
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.407-415
  • Keywords: Solid and solution state studies, Metal complex, Azacrown ether, Redox property, VIC-DIOXIME LIGAND, TRANSITION-METAL-COMPLEXES, BIOLOGICAL APPROACH, CYCLIC VOLTAMMETRY, MONONUCLEAR, NI(II), CU(II), SPECTROSCOPY, CO(II), N-4
  • Ankara University Affiliated: Yes

Abstract

A new vic-dioxime ligand (1), bearing pendant an azacrown ether moiety and its soluble mononuclear cadmium(II), zinc(II), nickel(II), copper(II) and cobalt(II) complexes were obtained with the metal: ligand ratios of 1: 2 and 1:1. The structures of the ligand and its complexes were verified using Fourier transform infrared (FT-IR), ultraviolet-visible (UV-Vis), mass spectrometry (MS), H-1 and C-13 NMR techniques. More detailed information about the structure of the 1 was provided by the two-dimensional (2D) heteronuclear single quantum coherence and heteronuclear multiple bond correlation techniques. The complexation properties of the ligand 1 were studied in the presence of different cations such as Pb2+, Zn2+, Cu2+, Cr3+, Hg2+, Zn2+, Fe3+ and Al3+ by UV-Vis spectroscopy and H-1 NMR titration methods. All experimental results indicated that the new ligand acts as a selective compound only for Hg+2 cation. The redox behaviour of the complexes, were investigated by cyclic voltammetry at the glassy carbon electrode in 0.1 M tetrabutylamoniumtetrafluoroborate in dimethyl sulfoxide.