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合成了配合物[Cu(HL)(H_2O)(NO3)]NO3(1)和[Zn(HL)Cl2](2)(HL为3-乙基-2-乙酰吡嗪缩4-苯基氨基脲),并通过单晶X射线衍射、元素分析及红外光谱表征了结构。单晶衍射结果表明,配合物1中,中心Cu(Ⅱ)离子与1个中性三齿缩氨基脲配体,1个水分子和1个硝酸根配位,配位构型为扭曲的四方锥。配合物2中Zn(Ⅱ)离子周围的配位原子为N2OCl2,其配位构型与配合物1中Cu(Ⅱ)离子的相同。甲醇溶液中,配合物2的荧光发射峰与配体HL相似。而配合物1由于配体和金属离子之间的能量转移,最大荧光发射峰略有红移。
The complexes [Cu (HL) (H 2 O) (NO 3)] NO 3 (1) and [Zn (HL) Cl 2] Urea) and characterized by single crystal X-ray diffraction, elemental analysis and infrared spectroscopy. The results of single crystal diffraction show that Cu (Ⅱ) ion is coordinated with one neutral tridentate semicarbazide ligand, one water molecule and one nitrate, and the coordination configuration is distorted tetragonal Cone. The coordination atom around Zn (Ⅱ) in complex 2 is N2OCl2, which has the same coordination structure as that of Cu (Ⅱ) in complex 1. In methanol solution, the fluorescence emission peak of complex 2 is similar to ligand HL. However, due to the energy transfer between ligand and metal ions, the maximum fluorescence emission peak of complex 1 is slightly red-shifted.