以1,1′∶4′,1″∶4″,1(″)-四联苯-2,4,2(″),4(″)-四羧酸(H4L)和4,4'-联吡啶(4,4'-bpy)为配体,采用水热法合成了一维锌配位聚合物[Zn2(H2L)2(4,4'-bpy)2(H20)]n(1),并通过单晶X射线衍射分析、元素分析、红外光谱分析和热重分析等方法对其结构进行了表征.单晶结构分析表明1属于三斜晶系,空间群为Pl.配合物1含有2种配位构型不同的锌离子,分别处于扭曲的三角双锥{ZnNO4}和八面体{ZnNO5}几何构型中.配合物中2个H2L2-配体之间通过锌离子相互连接,构成了无限的一维zigzag平面结构.荧光传感实验表明配合物1的荧光能够被2,4,6-三硝基苯酚和氟啶胺猝灭,且具有较高的灵敏度和选择性,抗干扰性也非常好.
A 1D coordination polymer[Zn2(H2L)2(4,4'-bpy)2(H2O)]n(1)(H4L=1,1′∶4′,1"∶4",1(″)-quterphenyl-2,4,2(″),4(″)-tetracarboxylic acid,4,4′-bpy=4,4′-bipyridine)was synthesized by hydrothermal method,and its structure was char-acterized by single-crystal X-ray diffraction analysis,elemental analysis,infrared spectroscopy,thermogravimetric analysis,etc.The crystallographic analysis shows that complex 1 belongs to the triclinic crystal system with the space group of P1.Complex 1 consists of two zinc ions with different coordination geometries,which lie in a distort-ed trigonal bipyramidal{ZnNO4}and octahedral{ZnNO5}geometrical configuration,respectively.The two H2L2-ligands in complex 1 are linked to each other by zinc ions,forming an infinite 1D zigzag planar structure.The fluo-rescence sensing experiments indicated that the fluorescence of complex 1 could be quenched by 2,4,6-trinitrophe-nol and fluazinam with high sensitivity and selectivity.Moreover,the anti-interference of detection was also quite excellent.