两个Pb(Ⅱ)/Cd(Ⅱ)配合物晶态荧光材料的合成、结构及性质

Synthesis,Crystal Structures and Properties of Two Pb(Ⅱ)/Cd(Ⅱ)Complexes of Crystalline Fluorescent Materials

采用水热法合成了单核Pb(Ⅱ)/Cd(Ⅱ)配合物[Pb(phen)_4]·(H_2L1)(1)和[Cd(phen)_2Cl_2]·(H_3L2)(2)(phen=1,10-邻菲罗啉,Na2H_2L1=4,5-二羟基苯-3,5-二磺酸钠,Na H_2L2=间苯二甲酸-5-磺酸钠)。通过X射线单晶衍射、元素分析、红外光谱确定了两个配合物的结构和组成。中心离子分别是八配位和六配位的,呈双帽三棱柱和八面体构型。含磺酸基配体没有与中心离子配位。室温下配合物1和2均具有荧光发射峰,分别在423 nm和430 nm,荧光寿命分别为3.67 ms和0.35 ms。

The two mononuclear Pb （Ⅱ）/Cd （Ⅱ） complexes containing N-donor ligands [ Pb （ phen ）4]·（H2L1） （1） and [Cd（phen）2Cl2]·（H3L2） （2） （phen = 1,10-phenanthroline, Na2H2L1 = 4, 5-dihydroxy-1,3-benzenedisulfonic acid disodium salt, NaH2L2 = 5-sulfoisophthalic acid monosodium salt） were synthesized by hydrothermal methods. The compositions and structures of the complexes 1 and 2 were determined by X-ray single crystal diffraction, elemental analyses and IR. The central ions are eight-coordinated and six-coordinated with bicapped triangular prism and octahedral configuration, respectively. The sulfonate group-containing ligands are not coordinated with the central ions. At room temperature, the complexes 1 and 2 have fluorescence emission peaks, which are at 423 nm and 430 nm with fluorescence lifetime of 3.67 ms and 0.35 ms, respectively.