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.
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)
