[(dbm)3Ln(dmbipy)](Ln=Eu,Tb,Ho,Tm,Yb)的合成、结构和荧光性质  

Synthesis,structure and luminescence properties of[(dbm)_(3) Ln(dmbipy)](Ln=Eu,Tb,Ho,Tm,Yb)

作　　者：刘斌 魏益静 贺兰杨卉 刘姗姗 LIU Bin;WEI Yi-jing;HE LAN Yang-hui;LIU Shan-shan(Beijing Key Laboratory of Fuels Cleaning and Advanced Catalytic Emission Reduction Technology,College of Chemical Engineering,Beijing Institute of Petrochemical Technology,Beijing 102617,China)

机构地区：[1]北京石油化工学院化学工程学院,燃料清洁化及高效催化减排技术北京市重点实验室,北京102617

出　　处：《化学研究与应用》2021年第8期1508-1513,共6页Chemical Research and Application

基　　金：北京市自然科学基金项目(2202016)资助;国家自然科学基金项目(21602013)资助;北京市大学生研究训练计划(2020J00007)资助。

摘　　要：以二苯甲酰甲烷和4,4’-二甲基-2,2’-联吡啶为配体合成了一类单核稀土配合物[(dbm)3Ln(dmbipy)](Ln=Eu(1)、Tb(2)、Ho(3)、Tm(4)和Yb(5))(Hdbm-=二苯甲酰甲烷,dmbipy=4,4’-二甲基-2,2’-联吡啶)。单晶X-射线衍射分析表明五例配合物为同构,结晶于单斜晶系,P21/n空间群。配合物由3个dbm-配体和1个dmbipy配体构成,中心Ln^(3+)离子位于四方反棱柱构型中。荧光测试表明,配合物1和2在可见光区出现了Eu^(3+)和Tb^(3+)离子的一系列特征发射峰,配合物3,4和5在近红外光区分别表现出Ho^(3+),Tm^(3+)和Yb^(3+)离子的特征发射峰。A class of mononuclear rare-earth complexes,[(dbm) 3Ln(dmbipy)](Ln=Eu( 1 ),Tb( 2 ),Ho( 3 ),Tm( 4 )and Yb( 5 ))(Hdbm=dibenzoylmethane,dmbipy=4,4'-dimethyl-2,2'-bipyridine)were synthesized by using dibenzoylmethane and 4,4'-dimethyl-2,2'-bipyridine as ligands.Single-crystal X-ray diffraction data reveal that five complexes are isostructural and crystallize in the monoclinic P2 1/n space group.The complex is composed of three dbm - ligands and one dmbipy ligand,and the center Ln ^(3+) ion is located in the square antiprismatic environment.The fluorescence test shows that complexes 1 and 2 exhibit a series of characteristic emission peaks of Eu ^(3+) and Tb ^(3+) ions in the visible region and complexes 3 , 4 and 5 show the characteristic emission peaks of Ho ^(3+) ,Tm ^(3+) and Yb ^(3+) ions in the near-infrared region.

关 键 词：稀土配合物 晶体结构 荧光 二苯甲酰甲烷 

分 类 号：O641.4[理学—物理化学]