| Ten new coordination polymers, namely,[Zn（L）（H2O）]（1）,[Zn（L）（biim-4）0.5]2H2O （2）,[Zn（L）（biim-6）0.5]2H2O （3）,[Zn（L）（BTE）0.5（H2O）] H2O （4）,[Zn（L）（phen）] H2O （5）,[Cu（L）（phen）] H2O （6）,[Cd（L）（phen）]（7）,[Cd5（L）5（biim-4）2.5]5H2O （8）,[Co（L）（biim-4）0.5（H2O）] H2O （9）, and [Ni（L）（biim-4）0.5（H2O）]2H2O （10）, where H2L=3-carboxy-1-（4-carboxybenzyl）-2-oxidopyridinium, biim-4=1,1’-（1,4-butanediyl）bis（imidazole）, biim-6=1,1’-（1,6-hexanedidyl）bis（imidazole）, BTE=1,1’-（2,2’-oxybis（ethane-2,1-diyl））bis（1H-1,2,4-triazole）, and phen=1,10-phenanthroline,have been synthesized under hydrothermal conditions. These complexes were structurallycharacterized by single-crystal X-ray diffraction analyses and further characterized byinfrared spectra （IR）, elemental analyses, powder X-ray diffraction （PXRD） andthermogravimetric （TG） analyses. Compound1displays a2D undulated layer structure.Compounds2and3exhibit the similar1D chain structures. In2, the adjacent chains areextended into a3D supramolecular architecture via hydrogen-bonding interactions and π–πinteractions. In3, the adjacent chains are extended into a3D supramolecular architecture viahydrogen-bonding interactions. Compound4shows a1D chain structure. The adjacent chainsare extended into a3D supramolecular architecture through π–π interactions. Compounds5and6are isomorphous, and show the same1D chain structures. The chains are linked byhydrogen-bonding interactions into a3D supramolecular architecture. Compound7shows a1D chain structure. The chains are arranged on parallel levels in two directions, resulting in aplywood-like structure. Compound8displays an unusual2D2-fold parallel interpenetratingnetwork with both polyrotaxane and polycatenane characters. Compound9shows a2D3-connected63network. The structure of compound10is an intriguing2D self-penetratingnetwork. In addition, the photoluminescent properties of1-5,7and8have also beeninvestigated in detail. |
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