5337-28-0Relevant academic research and scientific papers
Synthesis of (2-hydroxo-5-chlorophenylaminoisonitrosoacetyl)phenyl ligands and their complexes: Spectral, thermal and solvent-extraction studies
Karipcin, Fatma,Dede, Bülent,Cengiz, Mustafa
body text, p. 530 - 540 (2010/08/04)
Four different types of new ligands Ar[COC(NOH)R] n (Ar=biphenyl, n = 1 H2L1; Ar=biphenyl, n = 2 H 4L2; Ar=diphenylmethane, n = 1 H2L3; Ar=diphenylmethane, n = 2 H4L4; R=2-amino-4-chlorophenol in all ligands) have been obtained from 1 equivalent of chloroketooximes Ar[COC(NOH)Cl] n (HL1-H2L4) and 1 equivalent of 2-amino-4-chlorophenol (for H2L1 and H 2L3) or 2 equivalent of 2-amino-4-chlorophenol (for H 4L2 and H4L4). (Mononuclear or binuclear cobalt(II), nickel(II), copper(II) and zinc(II) complexes were synthesized with these ligands.) These compounds have been characterized by elemental analyses, AAS, infra-red spectra and magnetic susceptibility measurements. The ligands have been further characterized by 1H NMR. The results suggest that the dinuclear complexes of H2L1 and H2L3 have a metal:ligand ratio of 1:2; the mononuclear complexes of H4L2 and H4L4 have a metal:ligand ratio of 1:1 and dinuclear complexes H4L2 and H4L4 have a metal:ligand ratio of 2:1. The binding properties of the ligands towards selected transition metal ions (Mn II, CoII, NiII, CuII, Zn II, PbII, CdII, HgII) have been established by extraction experiments. The ligands show strong binding ability towards mercury(II) ion. In addition, the thermal decomposition of some complexes is studied in nitrogen atmosphere.
Synthesis and characterization of some Borylated (4-Biphenyl)(N-arylamino) glyoxime complexes
Karipcin,Erdem-Tuncmen,Baskale-Akdogan,Dede
body text, p. 525 - 535 (2010/02/28)
A series of Cu(II), Ni(II) and Co(III) complexes of the type [M(L n)2(H2O)2(BF2) 2] and [Co(Ln)2PyCl(BF2) 2] (where M = Cu(II) or Ni(II); n = 1,2; L = bidentate dioxime ligands) have been synthesized by the reactions of dioxime complexes with boron trifluoride diethyl ether complex in acetonitrile under nitrogen atmosphere. In all these reactions, the bridging protons of the dioxime complexes replace BF2 groups. These complexes have been characterized by elemental analyses, FT-IR, ICP-OES, 1H NMR together with magnetic susceptibility measurements. In particular, the thermal decomposition of all the complexes was studied in nitrogen atmosphere.
