New 3D dicyanamide bridged coordination polymer of Ni(II): Synthesis, crystal structure, magnetic properties and antibacterial assay

被引：18

作者：

Tabrizi, Leila ^{[1
]}

Chiniforoshan, Hossein ^{[1
]}

Araujo, Joao P. ^{[2
]}

Lopes, Armandina M. L. ^{[2
,3
]}

Goerls, Helmar ^{[4
]}

Plass, Winfried ^{[4
]}

Mohammadnezhad, Gholamhossein ^{[1
]}

机构：

[1] Isfahan Univ Technol, Dept Chem, Esfahan 8415683111, Iran

[2] Univ Porto, FUCP, IFIMUP IN, Dept Phys & Astron, P-4169007 Oporto, Portugal

[3] Univ Lisbon, Ctr Nucl Phys, P-1649003 Lisbon, Portugal

[4] Univ Jena, Inst Anorgan & Analyt Chem, Lehrstuhl Anorgan Chem 2, D-07743 Jena, Germany

来源：

INORGANICA CHIMICA ACTA | 2015年 / 426卷

关键词：

Nickel(II); Dicyanamide; Structural studies; Antimicrobial; Magnetic study; SCHIFF-BASES; 3-D NETWORK; COMPLEXES; COPPER(II); HEXAMETHYLENETETRAMINE; NICKEL(II); TRANSITION; DINUCLEAR; LIGANDS; CO(II);

D O I：

10.1016/j.ica.2014.10.030

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

One new coordination polymer of Ni(II), {[Ni(mu(1,5)-dca)(2)(mu-hmt)]H2O}(n), (1), using hmt (hmt = hexamethylenetetramine), and dca (dca = dicyanamide) as bridged ligands has been synthesized and characterized by X-ray single crystal analysis. Compound 1 is a three-dimensional polymer which contains the solvent water molecules. Both dca and hmt are mu(2)-bridged. In addition; thermal stability of 1 is investigated by thermogravimetric (TGA) analysis. Antibacterial activities of complex 1 also show greater activity than the reference antibiotic gentamycin against Klebsiella pneumonia. Magnetic susceptibility measurements revealed weak antiferromagnetic exchange interactions between the nickel centers bridged by long hmt and dicyanamides ligands. A 3D long-range magnetic order is observed below 22 K with a small ferromagnetic component, possibly due to spin canting developing at these low temperatures. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：195 / 201

页数：7

共 54 条

[1] Versatile coordination mode of dicyanamide in nickel(II) complexes containing polyamines as blocking ligands [J].