Six New Complexes Based on Substituted Pyridazine Ligands: Structures and Luminescent Properties
作者:Sheng-Bin Zhou、Ceng-Ceng Du、Xin-fang Wang、Ying-Zhi Han、Jun-Liang Dong、Duo-Zhi Wang
DOI:10.1007/s10870-017-0699-6
日期:2017.12
Three structurally related ligands 3-chloro-6-(benzoimidazol-1-yl)pyridazine (L 1 ), 3-chloro-6-(1,2,4-triazol-1-yl)pyridazine (L 2 ) and 3,6-bis(imidazol-1-yl)pyridazine (L 3 ) were designed and synthesized, and six new Zn(II), Co(II), Cu(II) and Cd(II) complexes, namely, [M(L 1 )2Cl2] [M = Zn (1) and Co (2)], [Cu(L 2 )2(NO3)2(H2O)] (3), [Cu(L 2 )2Cl2]∞ (4), [CuL 3 (CH3COO)2]∞ (5) and [CdL 3 (SCN)2]∞ (6) were synthesized and characterized by elemental analyses, IR spectra as well as single-crystal X-ray diffraction analysis. The analysis reveals that complexes 1, 2 and 3 have a mononuclear structure, 1 and 2 have a similar structure. Complex 3 features a 1D structure with intermolecular O–H⋯O hydrogen bonding interactions. Complex 4 shows a 1D chain structure with bridging Clˉ ions. Complex 5 exhibits a 1D ladder structure. The 2D framework of 6 features are rectangular grid with a (4, 4) topology. Additionally, photoluminescence properties of ligands L 1 , L 3 and complexes 1, 2 and 6 have been studied and discussed. Six new metal-organic complexes were synthesized and structurally characterized, complexes 1, 2 and 3 have a mononuclear structure, complexes 4 and 5 show 1D chain structure, the 2D framework of 6 has a rectangle grid with a (4, 4) topology, moreover, photoluminescence properties of ligands L 1 , L 3 and complexes 1, 2 and 6 have been studied and discussed.
设计合成了三种结构相关的配体3-氯-6-(苯并咪唑-1-基)哒嗪(L1)、3-氯-6-(1,2,4-三唑-1-基)哒嗪(L2)和3,6-双(咪唑-1-基)哒嗪(L3),并合成了六个新的Zn(II)、Co(II)、Cu(II)和Cd(II)配合物,即[M(L1)2Cl2][M=Zn(1)和Co(2)]、[Cu(L2)2(NO3)2(H2O)](3)、[Cu(L2)2Cl2]∞(4)、[CuL3(CH3COO)2]∞(5)和[CdL3(SCN)2]∞(6),并通过元素分析、IR光谱以及单晶X射线衍射分析进行了表征。分析表明,配合物1、2和3具有单核结构,1和2具有相似的结构。配合物3具有一维结构,具有分子间O-H⋯O氢键相互作用。配合物4显示出一维链结构,具有桥联的Clˉ离子。配合物5展示出一维梯形结构。配合物6的二维框架具有(4,4)拓扑结构的矩形网格。此外,还研究并讨论了配体L1、L3以及配合物1、2和6的光致发光性能。合成了六种新的金属有机配合物并进行了结构表征,配合物1、2和3具有单核结构,配合物4和5显示一维链结构,配合物6的二维框架具有矩形网格的(4,4)拓扑结构,此外,还研究并讨论了配体L1、L3以及配合物1、2和6的光致发光性能。