【摘 要】
：
通过2-(2′-羟基-3′-甲氧基)萘咪唑(HL)和Ln(NO)_3·6H_2O反应,合成了4种单核稀土配合物[Ln(HL)_2(NO_3)_3]·CH_2Cl_2(Ln=Sm(1),Eu(2),Tb(3))和[Ln(HL)_2(NO_3)_2(CH_3OH)]
【机 构】
：
黑龙江大学化学化工与材料学院功能无机材料化学教育部重点实验室,《黑龙江大学工程学报》编辑部,
论文部分内容阅读
通过2-(2′-羟基-3′-甲氧基)萘咪唑(HL)和Ln(NO)_3·6H_2O反应,合成了4种单核稀土配合物[Ln(HL)_2(NO_3)_3]·CH_2Cl_2(Ln=Sm(1),Eu(2),Tb(3))和[Ln(HL)_2(NO_3)_2(CH_3OH)]NO_3·CH_3OH(Ln=Yb(4))。X射线单晶衍射分析表明配合物1~4均通过配体萘环间的π-π作用呈现蝴蝶状结构。荧光性质表明仅有配合物4显示Yb3+稀土离子的特征发光,固态和在乙腈溶液中的荧光寿命分别为8.27μs和4.40μs。
Four mononuclear rare earth complexes [Ln (HL) _2 (NO_3) _3] were synthesized by the reaction of 2- (2’-hydroxy-3’-methoxy) ] · CH_2Cl_2 (Ln = Sm (1), Eu (2), Tb (3)) and [Ln (HL) _2 (NO_3) _2 (CH_3OH)] NO_3 · CH_3OH (Ln = Yb (4)). X-ray single crystal diffraction analysis showed that all the complexes 1 ~ 4 showed a butterfly structure through the π-π interaction between the naphthalene rings of the ligands. Fluorescence properties indicate that only complex 4 shows characteristic emission of Yb3 + rare earth ions, with fluorescence lifetime of 8.27 μs and 4.40 μs for the solid state and in acetonitrile solution, respectively.
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