converted into “cis” conformation in the structures of the complexes, so that the TBimE can be used as a bidentate ligand to chelate the Zinc(II) and Cadmium(II) ions. Both 1 and 2 exhibit distorted tetrahedral geometries and the central metal atoms are coordinated by two N atoms from TBimE and two anions. The UV–Vis and emission spectra show that both the absorption and the emission of the complexes
基于半刚性
配体TBimE(TBimE =(E)-1,2-双(2-
苯并咪唑基)
乙烷),合成了两个新的配合物Zn(TBimE)Cl 2 1和Cd(TBimE)(I)2 2其结构已通过X射线单晶衍射法确定。X射线衍射分析表明,“反式” TBimE在复合物的结构中转化为“顺式”构象,因此TBimE可以用作双齿
配体来螯合Zinc(II)和Cadmium(II)离子。既1和2表现出扭曲四面体几何形状和中心
金属原子被选自TBimE两个N原子和两个阴离子配位。在紫外-可见 发射光谱和发射光谱表明,络合物的吸收和发射分别与
配体内过渡和
配体内荧光有关。