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合成并通过单晶衍射表征了5个配合物[Cu LCl2]·CH3COCH3(1)、[Zn LCl2]·CH3COCH3(2)、[Zn L(NO3)2]·0.5CH3COCH3(3)、[Ag L2]Cl O4(4)和[Ag L2]BF4(5)(L=2-(5-氯-8-喹啉氧基)-1-(吡咯烷-1-基)乙酮)。配合物1和2同构,五配位的中心金属离子采取扭曲的四方锥配位构型,与来自配体L的2个氧原子和1个氮原子及2个氯离子配位。而在配合物3中,锌离子与1个三齿配位的配体L,1个单齿配位的硝酸根和1个双齿配位的硝酸根配位,配位构型为扭曲的八面体。配合物4和5中,中心金属与配体的比例为1∶2。银离子与2个三齿配位的配体L配位,采取扭曲的八面体配位构型。乙腈溶液中,配合物1、2、4和5在410 nm处的最大荧光发射峰与配体L相似。而配合物3由于配体到锌离子之间的能量转移,最大荧光发射峰红移至430 nm。
Five complexes [Cu LCl2] · CH3COCH3 (1), [Zn LCl2] · CH3COCH3 (2), [Zn L (NO3) 2] · 0.5CH3COCH3 (3) were synthesized and characterized by single crystal diffraction ] Cl O4 (4) and [Ag L2] BF4 (5) (L = 2- (5-chloro-8-quinolinoxy) -1- (pyrrolidin-1-yl) ethanone). Complexes 1 and 2 are isomorphic. The five-coordinated central metal ions adopt a distorted tetragon pyramid configuration and coordinate with two oxygen atoms, one nitrogen atom and two chloride ions from ligand L. In complex 3, zinc ion coordinated with one tridentate ligand L, one monodentate nitrate and one bidentate nitrate, and the coordination structure was twisted Octahedron. In complexes 4 and 5, the ratio of central metal to ligand was 1: 2. Silver ions coordinate with two tridentate ligands L and adopt a twisted octahedral coordination configuration. In the acetonitrile solution, the maximum fluorescence emission peak of the complexes 1, 2, 4 and 5 at 410 nm is similar to that of Ligand. However, due to the energy transfer between ligand and zinc ions, the maximum fluorescence emission peak shifts to 430 nm.