Synthesis and spectroscopic studies of mixed-ligand and polymeric dinuclear transition metal complexes with bis-acylhydrazone tetradentate ligands and 1,10-phenanthroline
作者:Ramazan Gup、Bülent Kırkan
DOI:10.1016/j.saa.2005.08.008
日期:2006.6
measurements. The reaction of metal(II) acetates with the solution containing ligand and 1,10-phenonthroline in methanol gives mixed-ligand dinuclear metal(II) complexes with general formula [M2L(phen)2]Cl2 (L=L1 or L2), whereas, the ligands react with metal(II) acetates to form polymeric dinuclear complexes with general formula [(M2L2)n] (L=L1 or L2). In the complexes, the ligands act as dianionic tetradentate
两种类型的双核铜(II)和镍(II)配合物,带有两个四齿N2O2供体配体1,4-双(1-蒽酰基肼基乙基)苯(L1),1,4-双(1-水酰基酰肼基乙基)苯(L2)和已合成了N,N'-双齿杂环碱基[1,10-菲咯啉(phen)],并通过元素分析,红外光谱,UV-vis电子吸收光谱和磁化率测量对其进行了表征。乙酸金属(II)与含配体和1,10-菲咯啉的甲醇溶液在甲醇中反应,得到通式为[M2L(phen)2] Cl2(L = L1或L2)的混合配体双核金属(II)配合物,而所述配体与乙酸金属(II)反应形成通式为[(M2L2)n](L = L1或L2)的聚合物双核配合物。在复杂的地方 配体起双齿四齿的作用,以烯醇互变异构形式与烯醇氧和偶氮甲氮原子发生配位,而芳酰hydr部分的酚羟基和氨基不参与配位。已经研究了改变pH和溶剂对配体和配合物的吸收行为的影响。