Crystal Structure and Luminescent Properties of Diverse Cadmium(II) Coordination Polymers Based on A Semirigid Multicarboxylate Ligand
作者:Run-Ping Ye、Xin Zhang、Ye-Yan Qin、Yuan-Gen Yao
DOI:10.1002/zaac.201600038
日期:2016.3
Four CdII metal coordination polymers, namely, [Cd(HL)(H2O)3]n (1), [Cd(HL)(4,4′-bpy)]n·nH2O (2), [Cd3(L)2(2,2′-bpy)3(H2O)3]n·2nH2O (3), and [Cd3(L)2(phen)2(H2O)]n·2.5nH2O (4) [H3L = 3-(3-carboxyphenoxy) phthalic acid, 4,4′-bpy = 4,4′-bipyridine, 2,2′-bpy = 2,2′-bipyridine, phen = 1,10-phenanthroline], were synthesized and structurally characterized by X-ray diffraction, elemental analysis, and IR
四种CdII金属配位聚合物,即[Cd(HL)(H2O)3]n(1)、[Cd(HL)(4,4'-bpy)]n·nH2O(2)、[Cd3(L)2 (2,2'-bpy)3(H2O)3]n·2nH2O (3) 和 [Cd3(L)2(phen)2(H2O)]n·2.5nH2O (4) [H3L = 3-(3) -carboxyphenoxy) 邻苯二甲酸, 4,4'-bpy = 4,4'-联吡啶, 2,2'-bpy = 2,2'-联吡啶, phen = 1,10-菲咯啉], 合成并结构表征为 X射线衍射、元素分析和红外光谱。单晶 X 射线分析表明,配合物 1-3 具有不同的一维 (1D) 链结构,包括锯齿形链、梯形链和螺旋链,而配合物 4 显示出 0D 三核基序。这些低维复合物通过分子间 π-π 相互作用和氢键进一步扩展到 3D 超分子网络。配体 H3L 表现出五种配位模式:μ1-η2-螯合/μ1-