Preparation and characterization of new tetradentate Schiff base metal complexes and biological activity evaluation

被引：41

作者：

Sadeek, S. A. ^{[1
]}

El-Attar, M. S. ^{[1
]}

Abd El-Hamid, S. M. ^{[2
]}

机构：

[1] Zagazig Univ, Fac Sci, Dept Chem, Zagazig, Egypt

[2] Drinking Water & Sanitat Co, Mansoura, Egypt

来源：

JOURNAL OF MOLECULAR STRUCTURE | 2013年 / 1051卷

关键词：

Tetradentate Schiff base; Transition metal complexes; Infrared; Mass spectra; CRYSTAL-STRUCTURE; ANTIBACTERIAL; SPECTRA; ANTIFUNGAL; NICKEL(II); TRIDENTATE; LIGANDS; DMF;

D O I：

10.1016/j.molstruc.2013.07.053

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A new Schiff base (N,N'-ethylene (bis 1-cyclopropyl-6-fluoro-4-oxo-7-(piperazine-1-yl)-quinoline-3-carboxylic acid) and its Zn(II), Zr(IV), Ce(IV) and U(VI) complexes were synthesized and characterized by elemental analysis, molar conductance, IR, UV-Vis, H-1 NMR spectra, magnetic moment, thermal analysis as well as mass spectra. The IR results demonstrate that the tetradentate binding mode of the ligand involving azomethine nitrogen and carboxylato oxygen atoms. The calculated bond length and the bond stretching force constant, F(U=O), values for UO2 bond are 1.744 angstrom and 654.49 N m(-1). The antimicrobial activity of the synthesized ligand and its complexes were screened and the results showed that the metal complexes were found to be more active than free ligand. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：30 / 40

页数：11

共 53 条

[1] Synthesis, characterization and thermal analysis of some new transition metal complexes of a polydentate Schiff base [J].