微波辐射制备含铕荧光配合物及其性能表征

Microwave-irradiated synthesis and properties of rare earth fluorescent complex Eu(BA)_3 Phen

以苯甲酸(BA)为第一配体、邻菲罗啉(Phen)为第二配体、铕离子(Eu3+)为中心离子,采用微波辐射的方法制备了含铕荧光配合物,通过元素分析、FT-IR和1 H NMR确定配合物组成为Eu(BA)3Phen,采用TGA、XRD和荧光分光光度计对其性能进行测试分析:TGA结果表明配合物的起始分解温度为270℃,热稳定性良好;荧光分光光度计和XRD显示荧光性能优异且具有良好的结晶性能;与普通的制备方法相比,极大地缩短了反应时间,显著提高了反应效率.

A novel rare earth complex was synthesized with Eua＋, benzoic acid （BA）, and 1, 10- phenanthroline（Phen） under microwave irradiatiorL The chemical structure of the complex was determined as Eu（BA）3 （Phen） by elemental analysis, FT-IR and 1H NMR. Afterwards, TGA, XRD and photoluminescence measurements were employed to study the thermal stability,crystal structure and optical properties of the complex respectively. TGA result showed that the complex initial decomposition temperature was 270 ℃, which was exhibited excellent thermal stability, crystallinity and fluorescence properties. Compared with conventional heating methods, the results showed that the use of microwave irradiation could greatly shorten the reaction time and improve the efficiency of the reaetion.