Five novel mononuclear Co(II) chelate complexes derived from salicyloylpyrazoleoximes have been synthesized and characterized using elemental analysis, spectroscopic methods (UV-visible, IR, 1H NMR) and thermal analysis. The elemental analysis suggests that the Schiff Base Co(II) complexes have 1:2 stoichiometry. The spectroscopic determination suggest the complexes are square planer and the Schiff base coordinate to Co(II) metal through imine nitrogen and phenolic oxygen. All synthesized complexes are stable, non-hygroscopic, non-electrolytic and amorphous in nature. Most of the ligands and Co(II) complexes possess moderate antimicrobial activity against the test bacteria.

中文翻译：

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N、O 供体水杨酰基吡唑肟席夫碱的新型 Co(II) 金属配合物：合成、光谱研究和抗菌评价

使用元素分析、光谱方法（紫外-可见光、红外、1H 核磁共振）和热分析合成并表征了五种源自水杨酰基吡唑肟的新型单核 Co(II) 螯合物。元素分析表明，席夫碱 Co(II) 配合物的化学计量比为 1:2。光谱测定表明配合物是方形平面，席夫碱通过亚胺氮和酚氧与 Co(II) 金属配位。所有合成的复合物本质上都是稳定的、不吸湿的、非电解的和无定形的。大多数配体和 Co(II) 复合物对测试细菌具有中等的抗菌活性。