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The conjugate base of methyl 3-oxobutanoate as an antenna ligand in visible-emitting photoluminescent lanthanide complexes

机译:3-氧代丁酸甲酯的共轭碱作为可见光发射光致发光镧系元素络合物中的天线配体

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Coordination compounds with the formulae [Y(MAA)(3)](x) (1(Y)), [Ln(MAA)(3)](x) (1(Ln)), [Y(MAA)(3)(phen)] (2(Y)) and [Ln(MAA) (3)(phen)] (2(Ln)) (Ln = Sm, Eu, Tb, Dy, Yb; MAA = conjugate base of methyl 3-oxo-butanoate; phen = 1,10-phenantroline) were synthesized and characterized, and X-ray diffraction data were collected for [Tb(MAA)(3)(phen)] (2(Tb)) and [Yb(MAA)(3)(phen)] (2(Yb)). Most of the lanthanide derivatives showed appreciable luminescence in the solid state upon excitation with near-UV light. Strong emissions were observed in particular for complexes of lanthanide ions with high-energy resonance levels. Visibleemitting [Ln(MAA)(3)(phen)] compounds were successfully used as dopants for the preparation of luminescent poly(methylmethacrylate) samples. Similar derivatives of the conjugate base of dimethyl malonate (DMM), with formulae [Y(DMM) (3)(phen)] (3(Y)) and [Ln(DMM) (3)(phen)] (3(Ln)) (Ln = Eu, Tb, Dy), were also synthesized and their photoluminescence behaviour was compared to that of the analogous methyl 3-oxo-butanoato-complexes.
机译:具有式[Y(MAA)(3)](x)(1(Y)),[Ln(MAA)(3)](x)(1(L​​n)),[Y(MAA)(3 )(phen)](2(Y))和[Ln(MAA)(3)(phen)](2(Ln))(Ln = Sm,Eu,Tb,Dy,Yb; MAA =甲基3的共轭碱基合成并表征了-oxo-butanoate; phen = 1,10-phenantroline),并收集了[Tb(MAA)(3)(phen)](2(Tb))和[Yb(MAA)的X射线衍射数据)(3)(phen)](2(Yb))。大多数镧系元素衍生物在近紫外光激发下呈固态发光。特别是对于具有高能共振水平的镧系元素离子的络合物,观察到强发射。可见光发射[Ln(MAA)(3)(phen)]化合物已成功用作掺杂剂,用于制备发光聚甲基丙烯酸甲酯样品。丙二酸二甲酯(DMM)共轭碱的类似衍生物,其式为[Y(DMM)(3)(phen)](3(Y))和[Ln(DMM)(3)(phen)](3(Ln ))(Ln = Eu,Tb,Dy),也进行了合成,并将它们的光致发光行为与类似的甲基3-氧代-丁酸基络合物进行了比较。

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