Effect of Linker Length insemi-flexible 4,4′-Bispyridyl Ligands with Functional Spacer on the Architecture of their M(NO3)2 Complexes
作者:Yu-Qin Qiao、Xing-Qiang Lü、Cheng-Yong Su、Bei-Sheng Kang
DOI:10.1002/zaac.200700362
日期:2007.10
semi-flexible 4,4′-bispyridyl ligands, N,N′-bis(4-pyridylethyl) pyromellitic diimide (4-pepmd) and N,N′-bis(4-pyridylmethyl)pyromellitic diimide (4-pmpmd), with different linker length, and their coordination polymers obtained by reaction with M(NO3)2 (M = Co or Cd) in mixed CHCl3 and ROH solvents are reported. 2D (6,3) brick-wall networks with Py3M nodes for the isostructural [Co(4-pepmd)1.5(NO3)2]n · nCHCl3
两个半柔性 4,4'-双吡啶基配体,N,N'-双(4-吡啶基乙基)均苯四甲酸二亚胺(4-pepmd)和 N,N'-双(4-吡啶基甲基)均苯四甲酸二亚胺(4-pmpmd),报告了不同接头长度的配位聚合物,它们通过与 M(NO3)2 (M = Co 或 Cd) 在混合 CHCl3 和 ROH 溶剂中反应获得。具有 Py3M 节点的 2D (6,3) 砖墙网络,用于同构 [Co(4-pepmd)1.5(NO3)2]n · nCHCl3 · 2nH2O · nEtOH (1) 和 [Cd(4-pepmd)1.5(NO3) )2]n · nCHCl3 · nH2O · 2nMeOH (2),观察到 [Co(4-pmpmd)(NO3)2]n · nCHCl3 (3) 具有 Py2M 节点的一维锯齿形链。配体 4-pepmd 与更长的接头 –(CH2)2– 在其 Co 和 Cd 配合物中仅诱导三吡啶基结构单元和