含双水杨醛Schiff碱配体的双核配合物的合成及晶体结构

摘要

Four dinuclear transition metal complexes with schiff base ligand of bis-salicylaldehyde have been synthesized and structurally characterized by means of elemental analysis,IR,UV,TGA and X-ray single-crystal diffraction.The results of structural analysis indicate that complex 1,3 and 4 belong to triclinic crystal system,space group P(1) and the complex 2 belong to monoclinic crystal system,space group C2/c.In complex 1,two copper ions show different coordination environment,one of which has a five-coordinate,slightly distorted tetragonal pyramidal geometry and another has a four-coordinate squareplanar geometry.In complex 4,the binuclear units are held together to form an infinite 1D chain by bridging phenol O atoms.%合成了4个含双水杨醛Schiff碱配体的双核过渡金属配合物,并通过元素分析、红外光谱、紫外光谱,热重分析以及X-射线单晶衍射等手段对所得配合物进行了表征.结果表明,配合物1、3和4都属于三斜晶系,空间群为P(1),而配合物2属于单斜晶系,空间群为C2/c.在配合物1中,2个Cu(Ⅱ)离子具有不同的配位构型,其中一个Cu(Ⅱ)形成了五配位的四角锥构型,而另一个Cu(Ⅱ)形成了平面正方形构型.配合物4中,通过酚氧原子的桥联作用,双核单元相互连接形成了一维链状结构.