Synthesis, structural characterization and antimicrobial activity of mixed aryl-alkyl diorganotin(IV) compounds with quinoline-2-carboxylate (L−): {RR′SnLCl}n and RR′SnL2
作者:Marzieh Vafaee、Mostafa M. Amini、Hamid Reza Khavasi、Seik Weng Ng、Edward R. T. Tiekink
DOI:10.1002/aoc.2890
日期:2012.9
albicans were studied and compared with the antimicrobial activities of Ph2SnL2 and Me2SnL2, and with the antimicrobial standards gentamicin, tetracycline, ampicillin and penicillin. All organotin compounds displayed remarkable antibacterial activities that were comparable to those of the standard drugs, in particular against B. subtilis, where the activity was correlated with the number of Cl substituents
喹啉-2-羧酸(LH)的一系列不对称二有机锡衍生物,即聚合的MePhSnClL} n(1)和EtPhSnClL} n(2),以及单核MePhSnL 2(3)和EtPhSnL 2(4)。通过LH与MePhSnCl 2,EtPhSnCl 2,MePhSnO和EtPhSnO前体的反应合成。通过元素分析和红外光谱以及1 H,13 C和119对化合物进行表征Sn NMR。代表性化合物2和4的分子结构是通过单晶X射线晶体学确定的。这项研究表明,聚合物2采用扭曲的八面体几何形状,因为羧酸盐配体N,O螯合了一个Sn原子,并同时通过第二个O原子桥接了一个相邻的Sn原子,其余位点被Cl和两个C占据原子 O原子彼此间是反式的。所述μ的结果2升-bridging模式-是一个超分子螺旋链的形成。化合物4呈斜梯形双锥体的几何构型,有机基团位于两个N,O-螯合羧酸酯配体的平面上,并指向较弱的Sn-N键。在体外研