In the current study, both of Ni(II) and Co(II) complexes were derived from N,N′-bis(4-dimethyl-aminobenzylidene)-benzene-1,3-diamine as a novel ligand. The ligand and complexes were characterized by elemental analysis (CHNS), Fourier transform infrared spectroscopy (FT-IR), Ultraviolet–visible spectroscopy (UV–Vis), ESI mass spectroscopy, conductance, and magnetic moment measurements. Regarding magnetic moment measurements and spectral studies, an octahedral structure was suggested. The free ligand and metal complexes were evaluated in vitro against three bacterial pathogens, including; Staphylococcus aureus, Escherichia coli, and Bacillus subtilis. The growth inhibition zone of Ni(II) and Co(II) complexes was far more extended than the norm. Furthermore, we studied the catalytic activity of these complexes through the hydroxylation of phenol. Comparisons revealed that the catalytic performance of the Ni(II) complex was considerable than that of the Co(II) complex. Four parameters (i.e., duration of reaction, temperature, catalyst amount, and oxidant amount) were regarded for Ni(II) complex (as a catalyst) to achieve an optimum condition for hydroxylation of phenol. Ultimately, adequate time for the reaction was recognized in the 2 h duration and at 60 °C.

在当前的研究中，Ni（II）和Co（II）络合物均源自N，N'-双（4-二甲基-氨基亚苄基）-苯-1,3-二胺作为新型配体。通过元素分析（CHNS），傅立叶变换红外光谱（FT-IR），紫外可见光谱（UV-Vis），ESI质谱，电导和磁矩测量来表征配体和配合物。关于磁矩测量和频谱研究，建议使用八面体结构。在体外针对三种细菌病原体评估了游离配体和金属络合物，包括：金黄色葡萄球菌，大肠杆菌和枯草芽孢杆菌。Ni（II）和Co（II）配合物的生长抑制区远远超出了常态。此外，我们通过苯酚的羟基化研究了这些配合物的催化活性。比较表明，Ni（II）配合物的催化性能比Co（II）配合物的催化性能显着。考虑Ni（II）配合物（作为催化剂）的四个参数（反应持续时间，温度，催化剂量和氧化剂量），以实现酚羟基化的最佳条件。最终，在2 h的持续时间和60°C的条件下，可以识别出足够的反应时间。