酰胺型配体铜、锌、银配合物的合成、结构及荧光性质（英文）

发布时间：2018-09-13 06:32

【摘要】：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。
[Abstract]:Five complexes [Cu LCl2] CH3COCH3 (1), [Zn LCl2] CH3COCH3 (2), [Zn L (NO3) 2] 0.5CH3COCH3 (3), [Ag L2] Cl O 4 (4) and [Ag L2] BF4 (5) (Ln2- (5-chloro-8-quinolinoxy) -1- (pyrrolidine -1-yl) ethanone) were synthesized and characterized by single crystal diffraction. Complexes 1 and 2 are isomorphic, and the five-coordinated central metal ions take a twisted tetragonal coordination configuration, which is coordinated with two oxygen atoms, one nitrogen atom and two chloride ions from the ligand L. In complex 3, zinc ion is coordinated with a tridentate ligand L, a monodentate coordination nitrate and a bicententate coordination nitrate. The coordination configuration is a twisted octahedron. In complexes 4 and 5, the ratio of central metal to ligand is 1: 2. Silver ions were coordinated with two tridentate ligand L, and the distorted octahedral coordination configuration was adopted. In acetonitrile solution, the maximum fluorescence emission peaks of complexes 1, 2, 4 and 5 at 410 nm are similar to those of ligand L. The maximum fluorescence emission peak of complex 3 shifted to 430 nm. due to the energy transfer between ligand and zinc ion.
【作者单位】：河南理工大学材料科学与工程学院;河南理工大学化学化工学院;
【基金】：国家自然科学基金(No.21001040) 河南省科技厅基础与前沿项目(No.162300410011) 河南省教育厅自然科学基金(No.12B150011,14B150029)资助
【分类号】：O641.4

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