Three 3D Coordination Polymers Constructed by Cd(II) and Zn(II) with Imidazole-4,5-Dicarboxylate and 4,4‘-Bipyridyl Building Blocks
Three 3D Coordination Polymers Constructed by Cd(II) and Zn(II) with Imidazole-4,5-Dicarboxylate and 4,4‘-Bipyridyl Building Blocks
复制标题
DOI：
10.1021/cg0505158
复制
发表时间：
2006-02
影响因子：
3.8
通讯作者：
Wen-guan Lu;Long Jiang;Xiao-Long Feng;T. Lu
中科院分区：
文献类型：
--
作者：
Wen-guan Lu;Long Jiang;Xiao-Long Feng;T. Lu
通过控制溶液的最终pH值，水热合成了三种三维配位聚合物{（H2 bpy）[Cd 9（HIDC）4（IDC）4（bpy）4]·8H 2 O}n（1），[Zn 3（IDC）2（bpy）（H2O）2]n（2）和{[Zn 3（IDC）2（bpy）3]·（bpy）·8H 2 O}n（3）（H3 IDC =咪唑-4，5-二甲酸，bpy = 4，4 '-联吡啶）. 6，并通过单晶X射线衍射表征。在化合物1中，[Cd（bpy）2]2+连接了前所未有的[Cd 4（μ3-HIDC）2（μ4-IDC）（μ5-IDC）]24-的“双正方形”单元，生成{[Cd 8（μ3-HIDC）4（μ4-IDC）2（μ5-IDC）2]Cd（bpy）2} n2 n-的一维链，一维链进一步被μ2-bpy桥接形成二维砖墙状网络{[Cd 8（μ3-HIDC）4（μ4-IDC）2（μ5-IDC）2（μ2-bpy）2]Cd（bpy）2} n2 n-。（N-[Cd 9（HIDC）4（IDC）4（bpy）4]n2n-）。每个“砖”含有一个质子化的H2 bpy 2 + bpy离子，得到中性化合物{（H2 bpy）[Cd 9（HIDC）4（IDC）4（bpy）4]·8H 2 O}n。相邻的2D砖墙通过μ4-IDC 3-和μ5-IDC 3-桥垂直包装和互连，以生成1.μ3-HID的种类
Three 3D coordination polymers of {(H2bpy)[Cd9(HIDC)4(IDC)4(bpy)4]·8H2O}n (1), [Zn3(IDC)2(bpy)(H2O)2]n (2), and {[Zn3(IDC)2(bpy)3]·(bpy)·8H2O}n (3) (H3IDC = imidazole-4,5-dicarboxylic acid, bpy = 4,4‘-bipyridyl) were hydrothermally synthesized by controlling the final pH values of the solutions of ca. 6, and characterized by single-crystal X-ray diffraction. In compound 1, unprecedented “double-square” units of [Cd4(μ3-HIDC)2(μ4-IDC)(μ5-IDC)]24- are linked by [Cd(bpy)2]2+ to generate a 1D chain of {[Cd8(μ3-HIDC)4(μ4-IDC)2(μ5-IDC)2]Cd(bpy)2}n2n-, and the 1D chains are further bridged by μ2-bpy to form a 2D brick-wall-like network of {[Cd8(μ3-HIDC)4(μ4-IDC)2(μ5-IDC)2(μ2-bpy)2]Cd(bpy)2}n2n- (≡ [Cd9(HIDC)4(IDC)4(bpy)4]n2n-). Each “brick” contains one protonated bpy ion of H2bpy2+ to get a neutral compound of {(H2bpy)[Cd9(HIDC)4(IDC)4(bpy)4]·8H2O}n. The adjacent 2D brick walls are perpendicularly packed and interlinked by μ4-IDC3- and μ5-IDC3- bridges to generate a 3D open framework of 1. The species of μ3-HID...