M. Kurtoglu, E. Ispir, Nurcan Kurtoğlu
2008
Citations
1
Influential Citations
48
Citations
Journal
Dyes and Pigments
Abstract
Abstract A novel, substituted disodium-4-hydroxy-5-{[(1 E ,2 E )- N -hydroxy-2-(hydroxyimino)ethanimidoyl]amino}naphthalene-2,7-disulfonate vic -dioxime ligand (LH 2 ) was synthesized from 4-amino-5-hydroxy-2,7-naphthalenedisulfonic acid disodium salt and ( E , E )-monochloroglyoxime at room temperature. The mononuclear Cu II , Ni II , Zn II and Cd II complexes of this vic -dioxime ligand were prepared and their structures confirmed by elemental analysis, IR and UV–visible spectroscopy; the 1 H and 13 C NMR spectra of the LH 2 ligand ( 1 ) were also recorded. The oxime ligand, LH 2 , acts as a bidentate ligand bending through nitrogen atoms in the presence of base. Elemental analyses indicated that the ligand:metal ratio was 2:1 in the cases of Cu II and Ni II complexes and 1:1 in the cases of Zn II and Cd II complexes. The ligand was screened for its antimicrobial activity against the fungi Rhodotorula rubra , Kluyveromyces marxianus , Aspergillus fumigatus and Mucor pusillus and this was compared to that of metal complexes derived from it.