Six new copper(II) coordination polymers combining 2,3,5,6-tetrafluoroterephthalatic acid (H₂tfBDC) and diverse imidazole-containing ligands, {[Cu(tfBDC)(1,2-bix)₂]·2(H₂O)}_n (1), {Cu(tfBDC)(Im)₂}_n (2), {[Cu(1,4-bmimb)₂(H₂O)]·(tfBDC)·2(H₂O)}_n (3), {Cu(1,4-bimb)₂(H₂O)₂·(tfBDC)}_n (4), {[Cu(1,3-bix)₂(H₂O)₂]·(tfBDC)·6(H₂O)}_n (5) and {[Cu(1,4-bix)₂(H₂O)₂]·(tfBDC)·(1,4-bix)·4(H₂O)}_n (6) (1,2-bix = 1,2-bis(imidazole-1-ylmethyl)-benzene, Im = imidazole, 1,4-bmimb = 1,4-bis((2-methyl-1H-imidazol-1-yl)methyl)benzene, 1,4-bimb = 1,4-bis(imidazol-1-yl)-butane, 1,3-bix = 1,3-bis(imidazole-1-ylmethyl)-benzene, 1,4-bix = 1,4-bis(imidazole-1-ylmethyl)-benzene), have been obtained and structurally verified by single-crystal X-ray diffraction analyses and further characterized by powder X-ray diffraction (PXRD), elemental analyses and infrared spectroscopy (IR). Single crystal X-ray diffraction analysis revealed that 1 is 2D 4-connected sql topology (point symbol: {4⁴·6²}) based on a single metal ion node. Compound 2 is characterized as an infinite 1D chain structure, which is further extended into a 2D layer through N-H···O hydrogen bonds and then a 3D supramolecular architecture via π···π stacking interactions. Note that 2 was prepared through an in situ ligand reaction in which N,N’-carbonyldiimidazole (cdi) broke up into imidazole ligand. Compound 3 possesses a 3D 4-fold interpenetrated architecture with 4-connected dia topology (Schläfli symbol: {6⁶}) in which tfBDC^2- is stabilized in the channel by hydrogen bonds. Compounds 4–6 are all linear 1D coordination polymers. In 4, the free tfBDC^2- ligand acts as a μ₄-bridge to link four coordinated water molecules from the chain to construct a 2D structure via hydrogen bonds. While in 5 and 6, the uncoordinated tfBDC^2- ligands and multimeric water clusters is responsible for the conversion of these 1D coordination polymers into 3D supramolecular assemblies through O–H⋯O hydrogen bonding interactions. Moreover, the UV–vis spectra and thermal stability of 1–6 are discussed in detail.

六种新的铜（II）配位聚合物，结合了2,3,5,6-四氟对苯二甲酸（H ₂ tfBDC）和各种含咪唑的配体，{[Cu（tfBDC）（1,2-bix）₂ ]·2（H ₂ O）} _n（1），{Cu（tfBDC）（Im）₂ } _n（2），{[Cu（1,4-bmimb）₂（H ₂ O）]·（tfBDC）·2（H ₂ O）} _n（3），{Cu（1,4-bimb）₂（H ₂ O）₂ ·（tfBDC）} _n（4），{[Cu（1,3-bix）₂（H ₂ O）_2个]·（tfBDC）·6（H ₂ O）} _n（5）和{[Cu（1,4-bix）₂（H ₂ O）₂ ]·（tfBDC）·（1,4-bix）·4 （H ₂ O）} _n（6）（1,2-bix = 1,2-双（咪唑-1-基甲基）-苯，Im =咪唑，1,4-bmimb = 1,4-bis（（2 -甲基-1H-咪唑-1-基）甲基）苯，1,4-bimb = 1,4-双（咪唑-1-基）-丁烷，1,3-bix = 1,3-双（咪唑-已获得1,4-bix = 1,4-双（咪唑-1-基甲基）-苯的1-yl甲基）-苯，并通过单晶X射线衍射分析进行了结构验证，并进一步通过粉末X对其进行了表征射线衍射（PXRD），元素分析和红外光谱（IR）。单晶X射线衍射分析表明1是基于单个金属离子节点的2D 4连接sql拓扑（点符号：{4 ⁴ ·6 ² }）。化合物2的特征是无限的一维链结构，该结构通过NH···O氢键进一步扩展为2D层，然后通过π···π堆积相互作用而扩展为3D超分子结构。注意2是通过原位配体反应制备的，其中N，N′-羰基二咪唑（cdi）分解成咪唑配体。化合物3具有3D 4倍互穿结构，具有4个连接的dia拓扑（Schläfli符号：{6 ⁶ }），其中tfBDC^2-通过氢键在通道中稳定。化合物4-6均为线性一维配位聚合物。在4，自由tfBDC ^2-配体充当μ ₄ -bridge到链路4个配位水分子从链构建2D结构经由氢键。在5和6中，未配位的tfBDC ^2-配体和多聚体水簇负责通过O–H⋯O氢键相互作用将这些1D配位聚合物转化为3D超分子组装体。此外，还将详细讨论1-6的紫外可见光谱和热稳定性。