Abstract

A novel cadmium coordination polymer, namely, {[Cd(Htcpb)(DMF)(H₂O)₂]·1.5H₂O}_n(1) has been hydrothermally synthesized from Cd(NO₃)₂·4H₂O and a flexible triangle ligand of 1,3,5-tris(4-carboxyphenoxy)benzene (H₃tcpb). The structure has been determined by single-crystal X-ray diffraction analysis, elemental analysis, IR spectrum, powder X-ray diffraction, and thermanalysis. The structural analysis displays that complex 1 obtained at 120 °C features a 1D chain containing mononuclear cadmium centers. The fluorescence property of complex 1 was examined in the solid-state at room temperature, and upon excitation at 290 nm, it exhibits distinct fluorescence with the maximum emission at 389 nm.

摘要

一种新型的镉配位聚合物{[Cd（Htcpb）（DMF）（H ₂ O）₂ ]·1.5H ₂ O} _n（1）由Cd（NO ₃）₂ ·4H ₂ O和1,3,5-三（4-羧苯氧基）苯的柔性三角配体（H ₃ tcpb）。通过单晶X射线衍射分析，元素分析，IR光谱，粉末X射线衍射和热分析来确定结构。结构分析表明，在120°C下获得的配合物1具有包含单核镉中心的1D链。配合物1的荧光性质 在室温下在固态下进行检测，在290 nm激发后，它显示出明显的荧光，并在389 nm处具有最大发射。