Oxidovanadium(<scp>v</scp>) complexes of aroylhydrazones incorporating heterocycles: synthesis, characterization and study of DNA binding, photo-induced DNA cleavage and cytotoxic activities
作者:Subhashree P. Dash、Alok K. Panda、Sagarika Pasayat、Rupam Dinda、Ashis Biswas、Edward R. T. Tiekink、Subhadip Mukhopadhyay、Sujit K. Bhutia、Werner Kaminsky、Ekkehard Sinn
DOI:10.1039/c4ra14369h
日期:——
and 2, based on a tridentate-O,N,N coordinating anion and two oxido-O atoms. The dianion in 3 is tetradentate, coordinating one V atom as for 1 and 2, and bridging another via the pyridyl-N atom, and the N2O4 octahedral coordination geometry is completed by oxido- and ethanolate-O atoms. The result of the V–N bridging is a helical coordination polymer. An NO5 octahedral geometry is found in 4 defined
四种中性氧化钒(V)络合物VO 2 L 1(1),VO 2 L 2(2),VOL 3(OEt)(3)和VOL 4(OEt)EtOH(4)[其中HL 1 = 2-噻吩yl 2-乙酰基吡啶,HL 2 = 2-苯甲酰基吡啶的2-氨基苯甲yl,H 2 L 3 = 2-羟基苯乙酮的异烟酰yl ,H 2 L 4合成具有with呋喃,噻吩和吡啶残基的支架。所有配合物均通过各种光谱(红外,紫外-可见,NMR和ESI-MS)和单晶X射线衍射技术进行了全面表征。晶体学基于三齿-O,N,N配位阴离子和两个氧-O原子,建立了五坐标的几何形状,对于1和2中的每一个,其几何形状都向方形锥体变形。3中的二价阴离子为四齿状,与1和2配位一个V原子,并通过吡啶基-N原子与N 2 O 4桥接另一个八面体的配位几何结构由O和O原子完成。V–N桥接的结果是螺旋配位聚合物。一个NO 5八面体几何形状中发现的4由三齿-O定义,N,O