A new polymer[Cd(1,4-BDC)(H2O)](1)( 1,4-BDC=1,4-benzenedicarboxylate)has been syn⁃thesized under solvothermal conditions and characterized by IR spectrum,elemental analyses and single-crys⁃tal X-ray diffraction.Single crystal structure analysis shows that it crystallizes in monoclinic system ,space group C2/c,with a=1.882 2(3)nm,b=0.647 9(10)nm,c=0.69075(10)nm,α=γ=90.00°,β=92.338(4)°,Z=8,V=0.841 7(2) nm3,F(000)=576,Dc=2.340 g/cm3,μ(MoKα)=2.585 mm-1,and the final refinement gives R1=0.020 8 and wR2=0.057 1 for 6 739 reflections with I>2σ. CCDC=1 408 997. X-ray structure analysis re⁃veals that polymer 1 features a 3D PtS topology structure based on the Cd—O—C rod-shaped secondary building units.Moreover,the photoluminescent properties of 1 have also been investigated.%在水热条件下，一种新型的配合物[Cd（1，4-BDC）（H2O）]（1）（1，4-BDC=1，4-对苯二甲酸）被成功合成，并用元素分析，红外光谱，X射线单晶衍射等方法进行表征.X射线单晶结构分析表明，该配合物属于单斜晶系，C2/c 空间群，晶胞参数：a=1.8822（3） nm，b=0.6479（10） nm，c=0.69075（10） nm，α=γ=90.00°，β=92.338（4）°，Z=8，V=0.8417（2） nm3，F（000）=576，Dc=2.340 g/cm3，μ（Mo Kα）=2.585 mm-1，R1=0.0208，wR2=0.0571（I>2σ）. CCDC号为：1408997.该结构是基于Cd ̶O ̶C棒状结构的次级结构单元且具有PtS拓扑结构类型的三维配合物，此外，还研究该配合物的光致发光性能.
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