一种新型有机离子晶体的合成与热致变色性能研究  

Study on The Synthesis and Thermochromic Properties of A Novel Organic Ionic Crystal

作　　者：吴婷[1] 吴大雨 WU Ting;WU Da-yu(School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China)

机构地区：[1]常州大学石油化工学院,江苏常州213164

出　　处：《合成化学》2021年第4期303-307,共5页Chinese Journal of Synthetic Chemistry

基　　金：国家自然科学基金资助项目(21671027)。

摘　　要：以4,4′-(蒽-9,10-二基)二苯甲酸和NaOH为原料,通过酸碱中和反应合成了一种新型的有机离子晶体[Na^(+)(L^(-))]·7H2O(1,L=4,4′-(蒽-9,10-二基)二苯甲酸,CCDC:1993840),其结构经IR,元素分析和X-射线单晶衍射表征。1属P-1空间群的三斜晶系,晶胞参数a=6.8552(5),b=7.1529(5),c=16.1933(12),α=77.314(6)°,β=86.573(6)°,γ=82.295(5)°。室温固态荧光测试结果表明:在380 nm激发态下,配合物1在456 nm处具有很强的发射峰,荧光量子产率为39.4%;加热后,发射峰从蓝光红移至绿光,晶体颜色从绿色透明晶体变成淡黄色不透明固体,具有热致变色行为。A novel oganic ionic rystal,[Na^(+)(L^(-))]·4H2O(1,CCDC:1993840),was synthesized by acid-base neutralization from 4,4′-(anthracene-9,10-diyl)dibenzoic acid and NaOH.The structure was characterized by IR,elemental analysis and X-ray single crystal diffraction.The results showed that compound 1 belongs to triclinic system,space group P-1 with a=6.8552(5),b=7.1529(5),c=16.1933(12),α=77.314(6)°,β=86.573(6)°,γ=82.295(5)°.The results of solid-state fluorescence test at room temperature show that under the excitation state of 380 nm,compound 1 has a strong emission peak at 456 nm,and the fluorescence quantum yield is 39.4%.The larger red shift from blue light to green light,the crystal color also changed from green transparent crystal to light yellow opaque,with thermochromic behavior.

关 键 词：苯甲酸 中和反应 有机离子晶体 晶体结构 热致变色 合成 量子产率 

分 类 号：O614.112[理学—无机化学]