Synthesis and characterization of coumarin-based europium complexes and luminescence measurements in aqueous media
作者:Clémentine Féau、Emmanuel Klein、Carsten Dosche、Paul Kerth、Luc Lebeau
DOI:10.1039/b907579h
日期:——
A series of new ligands suitable for the formation of luminescent lanthanide complexes in water is described. The chelates are designed for analyte labeling and play the role of fluorescent donor in homogeneous time-resolved fluorescence assays using LEDs as a light source for excitation at 370 nm. Ligands 3–7 are constructed from a coumarin nucleus, for lanthanide sensitization, and different aminomethylenecarboxy
一系列新的配体适合于在体内形成发光的镧系元素络合物 水描述。螯合物被设计用于分析物标记,并在均相时间分辨荧光测定中使用LED作为光源在370 nm激发,在荧光供体中发挥作用。配体3-7是由香豆素核构成的,用于镧系元素的敏化作用,并且在敏化剂的7和5、6或8位引入了不同的氨基亚甲基羧基部分。生物相容性条件下的反应性间隔臂(马来酰亚胺(叠氮化物)在3位引入,以实现最终的生物缀合。描述了配体的合成和表征,以及它们相应的euro配合物的制备。配合物的光物理性质在水 通过紫外可见光谱和发光光谱。