配合物[Cd(H_(2)O)(PA)(3-dpye)_(0.5)]的合成,结构和荧光性能

Synthesis,structure and fluorescence properties of a complex[Cd(H_(2)O)(PA)(3-dpye)_(0.5)]

本文以合成具有荧光性能的金属-有机配合物为目标,分别选择帕莫酸(PA)和1,4-双(3-吡啶)酰胺乙烷(3-dpye)为羧酸和含氮配体,在溶剂热的反应条件下与Cd(Ⅱ)离子反应,得到了一个分子式为[Cd(H_(2)O)(PA)(3-dpye)_(0.5)]的金属-有机配合物.结构分析表明,配合物是一个一维的链状结构.其中,PA羧酸以成对的方式,由双核的Cd(Ⅱ)节点连接成为一个“环接环”一维金属-有机链;随后,3-dpye含氮配体,利用两端吡啶基上的N原子,并以“贯穿”的方式与同一环上两侧的Cd(Ⅱ)离子配位相连.性质研究发现,配合物不仅具有一定的固态荧光性能,同时还可作为荧光检测试剂来检测Fe;离子.

In this paper,aiming for synthesizing metal-organic complexes with fluorescence properties,parmoic acid(PA)and 1,4-bis(3-pyridyl)amide ethane(3-dpye)were selected as carboxylic acids and nitrogen-containing ligands,respectively,which reacted with Cd(Ⅱ)ions under solvothermal reaction conditions to give a metal-organic complex with the molecular formula[Cd(H_(2)O)(PA)(3-dpye)_(0.5)].The structural analysis shows that the complex shows an one dimensional chain structure,in which PA carboxylic acid is connected by Cd(II)ion in pairs to form a ring-connected-ring one-dimensional metal-organic chain.Subsequently,3-dpye ligand usestwo N atoms from pyridyl groups to connect with Cd(II)ions on both sides of the same ring.The complex not only displays solid-state fluorescence property,but also can be used as fluorescence detection reagent to detect Fe^(3+) ion.