含氟席夫碱配体及其Zn配合物的合成与表征

摘要

含salophen配体的锌金属配合物具有优异的荧光性能，成为生物荧光探针研究领域的重要研究对象。本文合成含氟salophen配体及其相应的 Zn( salophen)金属配合物，分别采用1 H NMR、IR、LC-MS、元素分析对其进行了详细的表征。结果表明， Zn金属与配体及甲醇中氧、氮形成五配位结构。紫外—可见光谱研究显示， Zn ( salo-phen)金属配合物在295 nm、397 nm处有典型特征吸收峰。荧光光谱显示，在397 nm波长激发下，配合物在507 nm有最大荧光发射峰。结果表明该配合物具有潜在的作为生物荧光探针的研究价值。%In the past few decades,Zn(II) metal complexes has attracted a great deal of interest as biological probes in living cell imaging,because of their photophysical properties such as high luminescence,good photostability.In this work,a zinc complex containing flu-orine substituted group, Zn ( salophen ) , was designed and synthesised. The sample was characterized by 1 H NMR, IR, LC-MS and elemental analysis. Results suggested that the zinc metal displays a square-planar arrangement formed by the N/O-donor atoms,while the axial position bind a solvent molecule. In the presence of good donor solvents, Zn ( salophen) metal complex form five-coordinate structure. The absorption spectrum of zinc complex consists of two distinguishable bands at 295 and 397 nm in ethanol solution,while consisting of two bands at 297 and 404 nm in DMSO solution.Zn(salophen) metal complex exhibits emission with maximum emission wavelength at 507 nm.