Synthesis, potentiometric and antimicrobial studies on metal complexes of isoxazole Schiff bases
作者:Y. Prashanthi、K. Kiranmai、N.J.P. Subhashini、Shivaraj
DOI:10.1016/j.saa.2007.07.028
日期:2008.6
Schiff bases and stability constants of their binary metal complexes have been determined potentiometrically in aqueous solution at 30+/-1 degrees C and at 0.1 M KNO3 ionic strength and discussed. Antimicrobial activities of the Schiff bases and their complexes were screened. The structure-activity correlation in Schiff bases and their metal(II) complexes are discussed, based on the effect of their stability
Cu(II),Ni(II)和Co(II)与3-(2-羟基-3-乙氧基苄叉亚氨基)-5-甲基异恶唑[HEBMI]和3-(2-羟基-5)的席夫碱的金属配合物合成了通过3-氨基-5-甲基异恶唑与取代的水杨醛缩合得到的-硝基亚苄基氨基)-5-甲基异恶唑[HNBMI]。Schiff碱及其配合物已根据元素分析,磁矩,摩尔电导率,热分析和光谱(IR,UV,NMR和质量)研究进行了表征。光谱数据表明,这些配体以单价二齿形式起作用,通过酚氧和偶氮甲碱氮原子配位。Co(II),Ni(II)的螯合物似乎是八面体的,而Cu(II)的螯合物似乎是八面体的。为了研究二元络合物的形成常数与抗菌活性之间的关系,已在30 +/- 1摄氏度和0.1 M KNO3离子强度的水溶液中通过电位滴定法确定了席夫碱的解离常数及其二元金属络合物的稳定性常数。和讨论。筛选了希夫碱及其复合物的抗菌活性。基于其稳定常数的影响,讨论了席夫碱及其