1,3-二苯基-4-酰基-5-吡唑酮Eu(Ⅲ)配合物的荧光性质

The fluorescent properties of the complexes of 1,3-diphenyl-4-acyl-5-pyrazolones with Eu(Ⅲ)

以 4种 1 ,3-二苯基 -4 -酰基 -5 -吡唑酮为配体 ,合成了 Eu( )的二元和三元配合物。对其荧光性质进行讨论 ,结果表明 ,配合物发射 Eu( )的特征荧光 ,配合物荧光强度与配体吡唑环 4-位酰基上的取代基团密切相关 ,荧光强度随配体不同的变化顺序为 DPBZP>DPBAP>DPBTP>DPCAP,第二配体 1 ,1 0 -邻菲罗啉具有较为明显的荧光增强作用。

The binary and ternary Eu(Ⅲ) complexes have been prepared with four 1,3 diphenyl 4 acyl 5 pyrazolones as ligands.Their fluorescent properties were discussed.The complexes emit the characteristic fluorescence of Eu(Ⅲ).The fluorescence intensities of the complexes are closely related to the substituents of the acyl at 4 position in pyrazolone ring of the ligands.The fluorescence intensities of the complexes are in the order of DPBZP>DPBAP>DPBTP>DPCAP.The second ligand,1,10 phenanthroline,remarkably enhance the intensities of the fluorescence.