具有双重荧光发射的金属-有机框架(MOFs)的合成及性能研究

Synthesis and Properties of Metal-Organic Framework(MOFs)with Dual Fluorescence Emission

近年来,具有双发射的MOFs比例荧光传感器因具有抗环境干扰的自校准能力,受到了人们的广泛关注.本文将有机发光分子(蒽)引入到三联吡啶多向多羧酸配体中合成了蒽功能化的多羧酸配体(H_(2)TPYAN),与过渡金属Cd^(2+)组装出一个新颖的MOFs.单晶结构解析结果证实,Cd-TPYAN是一个具有孔道结构的三维金属-有机框架,蒽分子定向排列于孔道内.Cd-TPYAN在290 nm的激发下可以产生350和446 nm的双重荧光发射.

In recent years,the MOFs ratio fluorescence sensor with dual emission has attracted wide attention because of its self-calibration ability against environmental interference.Herein,the polycarboxylic acid ligand(H_(2)TPYAN)functionalized with anthracene was synthesized by introducing the organic luminescent molecule(anthracene)into the terpyridine polycarboxylic acid ligand.With H_(2)TPYAN,a novel Cdbased MOFs(Cd-TPYAN)was assembled.The analysis results of single crystal structure confirmed that Cd-TPYAN is a three-dimensional metal-organic framework with pore structure,and anthracene molecules are oriented in the pore.Cd-TPYAN can produce dual fluorescence emission at 350 and 446 nm under the excitation of 290 nm.