Synthesis and characterization of some bi, tri and tetravalent transition metal complexes of N′-(furan-2-yl-methylene)-2-(p-tolylamino)acetohydrazide HL1 and N′-(thiophen-2-yl-methylene)-2-(p-tolylamino)acetohydrazide HL2
作者:S.M. Emam、S.A. AbouEl-Enein、F.A. El-Saied、S.Y. Alshater
DOI:10.1016/j.saa.2012.02.045
日期:2012.6
or tridentate for all metal complexes, except complexes (4 and 12). The ligands react as monobasic tetradentate and tridentate for complexes (4 and 12), respectively. Octahedral/tetrahedral Co(II) and Ni(II), octahedral/square planar Cu(II), and octahedral Mn(II), Fe(III), Cr(III), Ru(III), Hf(IV) and Zr(IV)O geometries were proposed. The ESR spectra of copper complexes (12 and 14) indicate d(x2−y2)
已经制备了四齿席夫碱配体HL 1,HL 2及其金属配合物,并通过分析,光谱(IR,UV-vis,1H NMR和ESR),摩尔电导率,磁和TGA测量。结果表明,除了(2、10和20)具有离子性质外,所有金属配合物均为非电解质。配体以酮中性形式配位,并且对所有金属配合物(配合物(4和12)除外)起双齿或三齿的作用。配体分别以一元四齿和三齿形式反应生成复合物(4和12)。八面体/四面体Co(II)和Ni(II),八面体/方形平面Cu(II)和八面体Mn(II),Fe(III),Cr(III),Ru(III),Hf(IV)和Zr提出了(IV)O几何形状。铜配合物(12和14)的ESR光谱表明d(X2-ÿ2)具有共价键特征的基态。研究了某些金属配合物的热分解和结晶水的类型。研究的金属络合物对被测微生物的活性非常弱。