Synthesis, crystal structure and redox properties of bis-imidazolyl-containing copper(II) complexes
作者:Ghezai T Musie、Xiaobao Li、Douglas R Powell
DOI:10.1016/s0020-1693(02)01469-x
日期:2003.5
Abstract Two copper(II) complexes, [Cu(L1)Cl]Cl and [Cu(L2)Cl]Cl, with tetradentate ligands L1=N,N′-bis[(1-methylimidazol-2-yl)methyl]-1,3-diaminopropan-2-ol and L2=N,N′-bis[(1-methylimidazol-2-yl)methyl]-1,3-diaminopropane were prepared and characterized. Ligands L1 and L2 were synthesized by NaBH4 hydrogenation of the corresponding Schiff bases obtained from condensation of 1-methyl-2-imidazolecarboxaldehyde
摘要具有四齿配体L1 = N,N'-双[(1-甲基咪唑-2-基)甲基]-的两种铜(II)配合物[Cu(L1)Cl] Cl和[Cu(L2)Cl] Cl制备并表征1,3-二氨基丙烷-2-醇和L2 = N,N'-双[(1-甲基咪唑-2-基)甲基] -1,3-二氨基丙烷。通过分别由1-甲基-2-咪唑甲醛与1,3-二氨基丙烷-2-醇和1,3-二氨基丙烷缩合获得的相应席夫碱的NaBH4氢化,合成配体L1和L2。配合物的晶体结构通过X射线衍射确定。配合物围绕铜中心显示方形金字塔形的几何形状,与配体的Cl-和N4供体组配合。电化学研究表明,该络合物在乙腈和水溶液中均经历准可逆的单电子还原。