Synthesis, Crystal Structure and Luminescent Property of an Eu^(3+) Complex  

作　　者：李东平 刘奇 连庆云 焦晓燕 李永绣 

机构地区：[1]Department of Chemistry, Nanchang University

出　　处：《Chinese Journal of Structural Chemistry》2014年第10期1539-1544,共6页结构化学（英文）

基　　金：Supported by the National Natural Science Foundation of China(21101090);the Natural Science Foundation of Jiangxi Province(20114BAB213001);the Education Department of Jiangxi Province(GJJ12041)

摘　　要：A new Eu（Ⅲ） complex, {[Eu（tta）2（C2H5OH）（NO3）]2（bmp）}·bmp（tta = 2-thenoyltrifluoro- acetonate, bmp = 2,2＇-bipyrimidine）, has been synthesized and characterized by elemental analysis, IR, luminescence and single-crystal X-ray diffraction analysis. The complex crystallizes in the monoclinic P21/n space group, with a = 11.894（6）, b = 14.235（8）, c = 19.078（10） A, β = 103.423（9）°, V = 3142（3） A3, Z = 2, Mr = 1721.10, Dc = 1.819 g/cm^3, F（000） = 1696, the final R = 0.0452 and wR = 0.1398 for 5375 observed reflections with I 〉 2σ（I）. In the complex, each Eu（Ⅲ） ion is coordinated with four oxygen atoms from two tta ligands and two nitrogen atoms from a bmp ligand, three oxygen atoms from one NO3- anion and one ethanol molecule, forming a distorted tricapped trigonal prism geometry. Luminescence measurement indicates that the europium complex is a strong red emitter in the solid state at room temperature.A new Eu（Ⅲ） complex, {[Eu（tta）2（C2H5OH）（NO3）]2（bmp）}·bmp（tta = 2-thenoyltrifluoro- acetonate, bmp = 2,2＇-bipyrimidine）, has been synthesized and characterized by elemental analysis, IR, luminescence and single-crystal X-ray diffraction analysis. The complex crystallizes in the monoclinic P21/n space group, with a = 11.894（6）, b = 14.235（8）, c = 19.078（10） A, β = 103.423（9）°, V = 3142（3） A3, Z = 2, Mr = 1721.10, Dc = 1.819 g/cm^3, F（000） = 1696, the final R = 0.0452 and wR = 0.1398 for 5375 observed reflections with I 〉 2σ（I）. In the complex, each Eu（Ⅲ） ion is coordinated with four oxygen atoms from two tta ligands and two nitrogen atoms from a bmp ligand, three oxygen atoms from one NO3- anion and one ethanol molecule, forming a distorted tricapped trigonal prism geometry. Luminescence measurement indicates that the europium complex is a strong red emitter in the solid state at room temperature.

关 键 词：Eu（Ⅲ） complex LUMINESCENCE Β-DIKETONE 

分 类 号：O641.4[理学—物理化学]