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[DyL2(NO3)2]·bpy·CH3OH·ClO4的合成、晶体结构和荧光性能研究
Synthesis,Structure and Fluorescence Property of[DyL2(NO3)2]·bpy·CH3OH·ClO4
【摘要】 以2,6-二(2-苯并咪唑)吡啶(L)和2,2′-联吡啶(bpy)为混合配体,与五水硝酸镝反应利用缓慢挥发法合成了一个镝(Ⅲ)配合物[DyL2(NO3)2]·bpy·CH3OH·ClO4(1),并对其结构进行了X射线衍射表征、元素分析、红外和紫外光谱分析。配合物1属于三斜晶系,空间群P1。配位中心Dy(Ⅲ)通过丰富的超分子作用力构筑三维空间网络结构。由于配位原子的孤对电子参与大共轭π键与金属配位后使得配体荧光发射峰发生蓝移。
【Abstract】 A Dy(Ⅲ)complex,[DyL2(NO3)2]·bpy·CH3OH·ClO4(1),was synthesized by using 2,6-bis(benzimidazol-2-yl)pyridine(L)and 2,2′-dipyridine(bpy)as ligands and it was characterized by single crystal X-ray diffraction,element analysis,FI-IR and UV/Vis absorption spectra.The complex 1 belongs to triclinic system,space group P1.The coordinated centers are connected by abundant of hydrogen bonds into three-dimensional framework.The emission of complex1 blue-shifted compared to the ligand due to the lone pair electrons of coordinated atoms participating in the large conjugated aromatic structure.
【Key words】 2,6-bis(benzimidazol-2-yl)pyridine; Dy complex; crystal structure; fluorescence;
- 【文献出处】 化学世界 ,Chemical World , 编辑部邮箱 ,2018年12期
- 【分类号】O641.4
- 【下载频次】113