Synthesis, Crystal Structure, and Antimicrobial Properties of a Novel 1-D Cobalt Coordination Polymer with Dicyanamide and 2-Aminopyridine

Abstract

A novel one-dimensional coordination polymer bis(2-aminopyridine)-μ-bis(dicyanamido) cobaltate(II) has been synthesized and characterized by elemental analyses and infrared and ultraviolet visible spectroscopies and the structure has been determined by single crystal X-ray diffraction. Co(II) ion in the complex is coordinated to two axial 2-aminopyridine ligands through the pyridine N-atom and four equatorial dicyanamide ligands to give a CoN6 slightly distorted octahedral coordination environment around the metal ion. The amino N-atom forms intrachain hydrogen bonds. Antimicrobial screening of the complex against eight pathogenic microorganisms (four bacteria and four fungi) isolated from humans, indicates that the complex is moderately active.

Antimicrobial and anti-biofilm properties of polypropylene meshes coated with metal-containing DLC thin films

“…2h), the Co-DLC coated polypropylene mesh showed the second most intense antimicrobial activity. Actually, some authors had also observed cobalt antimicrobial activity, as cobalt complexes [35][36][37][38]. Although the antimicrobial mechanism of cobalt is still not fully elucidated, care should be taken as metal complexes effects on microorganisms are far different, compared with both the pure metal and the metal in the DLC coatings.…”

Synthesis, Crystal Structure, and Antimicrobial Properties of [Diaquabis(hexamethylenetetramine)diisothiocyanato-κN]nickel(II) Complex

“…), we have synthesized a number of different materials and together with selected examples from the literature evaluated their antimicrobial properties [16,[23][24][25][26][27][28].…”

Crystal Packing Studies, Thermal Properties and Hirshfeld Surface Analysis in the Zn(II) Complex of 3-Aminopyridine with Thiocyanate as Co-Ligand

“…Considering the coordination ability and properties of zinc, 3-aminopyridine and SCN − , and in continuation of our interest in the synthesis of coordination polymers of heterocyclic N-donor ligands with pseudohalide co-ligands, which have been found to have interesting structures and properties [22] [23], we report the synthesis of a Zn(II) complex of 3-aminopyridine with thiocyanate as co-ligand. While aiming at the 1D coordination polymer, we obtained the structure reported herein, which is known in the literature [11].…”