Preparation of zinc (II) and cadmium (II) complexes of the tetradentate Schiff base ligand 2-((E)-(2-(2-(pyridine-2-yl)ethylthio) ethylimino)methyl)-4-bromophenol (PytBrsalH)

被引：62

作者：

Saghatforoush, Lotf A. ^{[1
]}

Aminkhani, Ali ^{[2
]}

Ershad, Sohrab ^{[3
]}

Karimnezhad, Ghasem ^{[1
]}

Ghammamy, Shahriar ^{[4
]}

Kabiri, Roya ^{[5
]}

机构：

[1] Payame Noor Univ, Dept Chem, Khoy, Iran

[2] Islamic Azad Univ, Dept Chem, Khoy Branch, Khoy, Iran

[3] Payame Noor Univ, Dept Chem, Marand, Iran

[4] Imam Khomeini Int Univ, Dept Chem, Qazvin, Iran

[5] Tabriz Univ, Fac Chem, Tabriz, Iran

来源：

MOLECULES | 2008年 / 13卷 / 04期

关键词：

tetradentate ligand; Schiff base; unsymmetric; zinc; cadmium; complex;

D O I：

10.3390/molecules13040804

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

We describe the synthesis and characterization of two new zinc (II) and cadmium (II) complexes of the tetradentate dissymmetric Schiff base ligand 2-((E)-(2-(2(pyridine-2-yl)ethylthio)ethylimino)methyl)-4-bromophenol (PytBrsalH), prepared from 1-(2-pyridyl)-3-thia-5-aminopentane (pyta) and 5-bromosalicylaldehyde. The complexes were synthesized by treating an ethanolic solution of the ligand with equimolar amounts of appropriate metal salts in 1 M methanolic solution of NaOH or alternatively, by a more direct route in which the two reactants are added to a solution of the ligand immediately after formation of the latter and prior to any isolation. The complexes were characterized by elemental analysis, FTIR, H-1-NMR, electronic spectra and molar conductivity. According to obtained data, the probable coordination geometries of zinc and cadmium in these complexes with mixed N, S and O donor atoms are tetrahedral- and octahedral-like, respectively. Both complexes were found to be 1: 1 electrolyte systems in acetonitrile.

引用

页码：804 / 811

页数：8

共 27 条

[1] The preparation of zinc(II) and cadmium(II) complexes of the pentadentate N3S2 ligand formed from 2,6-diacetylpyridine and S-benzyldithiocarbazate (H2SNNNS) and the X-ray crystal structure of the novel dimeric [Zn2(SNNNS)2] complex [J].