with high quantum yield and long emission lifetime plays vital roles for the sensing performance of functional lanthanide complexes. To enhance the energy transfer efficiency through the ligand-field effect, three lanthanide-based coordination polymers formulated as [Ln(H2O)(TPA)(ox)]·0.5H2O}n (Ln-CPs, Ln = Eu, Tb, and Gd) were solvothermally synthesized via employing 6-(1H-1,2,4-triazol-1-yl)pyridine-2-carboxylate
具有高量子产率和长发射寿命的特征性强光致发光对于功能性
镧系元素络合物的传感性能起着至关重要的作用。为了通过
配体场效应提高能量转移效率,将三种基于
镧系元素的配位聚合物配制成[Ln(H 2 O)(
TPA)(ox)]·0.5H 2 O} n(Ln-CPs,Ln = Eu,Tb和Gd)是通过使用6-(1 H -
1,2,4-三唑-1-基)
吡啶-2-
羧酸盐(
TPA)和
草酸盐(ox)作为触媒和桥联
配体来溶剂热合成的。这些获得的Ln-CP进行了结构和光物理性质的表征,并进一步研究了两种发光Ln-CP的传感能力和可行的应用。这三个Ln-CP在晶体学上是同构的,表现出(4 4)个层是由中心对称Ln 2(
TPA)2 }二聚体和对位ox 2–键对组装而成。由于共轭
TPA –生色团和扭曲的Ln III配位结构,观察到高效的能量从
TPA –的更长寿命的三重态迁移到Ln III,从而赋予了Eu-CP和Tb-CP可以