An ionic liquid-supported Schiff base 1-{2-(2-hydroxy-5-bromobenzylamine)ethyl}-3-ethylimidazolium tetrafluoroborate and its Fe(III) and Cr(III) complexes has been prepared and characterized by various analytical and spectroscopic methods such as elemental analysis, UV-visible, FTIR, ¹H NMR, mass spectra, TGA/DTG, molar conductance and magnetic susceptibility measurements. Based on these spectral studies octahedral geometry has been proposed for both complexes. Molar conductance of the complexes is showing their electrolytic nature. The Schiff base ligand and its complexes have tested for in vitro antibacterial activities against gram positive and gram negative bacteria to assess their inhibition potentials. Cr(III) complex has shown higher activity than the Fe(III) complex against the tested bacteria S. aureus and E. coli.

中文翻译：

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带有离子液体负载的席夫碱配体的新型Fe（III）和Cr（III）配合物的合成，理化性质和抗菌研究

制备了离子液体负载的席夫碱1- {2-（2-羟基-5-溴苄胺）乙基} -3-乙基咪唑四氟硼酸酯及其Fe（III）和Cr（III）配合物，并通过各种分析和光谱表征元素分析，紫外可见，FTIR，¹ H NMR，质谱，TGA / DTG，摩尔电导和磁化率测量等方法。基于这些光谱研究，已针对两种配合物提出了八面体几何形状。配合物的摩尔电导显示其电解性质。Schiff碱配体及其配合物已在 体外测试对革兰氏阳性和革兰氏阴性细菌具有抗菌活性，以评估其抑制潜力。Cr（III）配合物对测试的金黄色葡萄球菌和大肠杆菌的活性高于Fe（III）配合物。