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Synthesis, Crystal Structure, and Antibacterial Activity of a New Cobalt(II) Complex Containing Imidazole as Ligand

The reaction between the 1,1′-carbonyldiimidazole and Co(NO3)2·6H2O produced the crystalline material [Co(Im)6](NO3)2 (Im=imidazole). The crystal structure of [Co(Im)6](NO3)2 has been determined via X-ray diffraction and the result showed that Co(II) ion is coordinated by six nitrogen atoms from six ligands in a slightly distorted octahedral arrangement. The N-H…O hydrogen bonds generate a structure with two-dimensional networks. [Co(Im)6](NO3)2 was characterized via elemental analysis, FT-IR, and UV-Vis spectroscopy and the thermal stability of the complex has also been investigated in the solid state. In addition, the antibacterial activity of Im and [Co(Im)6](NO3)2 to Staphylococcus aureus was studied.