Synthesis,Structures,Luminescence and Catalytic Activity in the Knoevenagel Condensation Reaction of Two Cd(Ⅱ)Coordination Polymers Based on a Biphenyl-dicarboxylic Acid  

作　　者：WU Jiang GU Jin-Zhong 吴疆;顾金忠(Key Laboratory for Tibet Plateau Phytochemistry of Qinghai Province,School of Pharmacy,Qinghai University for Nationalities,Xining 810007,China;College of Chemistry and Chemical Engineering,Lanzhou University,Lanzhou 730000,China)

机构地区：[1]Key Laboratory for Tibet Plateau Phytochemistry of Qinghai Province,School of Pharmacy,Qinghai University for Nationalities,Xining 810007,China [2]College of Chemistry and Chemical Engineering,Lanzhou University,Lanzhou 730000,China

出　　处：《Chinese Journal of Structural Chemistry》2022年第2期34-42,I0008,共10页结构化学（英文）

基　　金：supported by the Science and Technology Plan of Qinghai Province(2018-ZJ-919)。

摘　　要：Two cadmium(II)coordination polymers,namely[Cd(μ-dda)(H2 biim)]n(1)and[Cd(μ4-dda)(py)]n(2)have been constructed hydrothermally using H2 dda(H2 dda=4,4?-dihydroxybiphenyl-3,3?-dicarboxylic acid),H_(2)biim(H_(2)biim=2,2?-biimidazole),py(py=pyridine),and cadmium chloride at 160°C.The products were isolated as stable crystalline solids and were characterized by IR spectra,elemental analyses,thermogravimetric analyses(TGA),and single-crystal X-ray diffraction analyses.Single-crystal X-ray diffraction analyses revealed that both compounds crystallize in the monoclinic system,space group C2/c.Compound 1 discloses a 1 D chain structure.Compound 2 features a 3 D framework.The luminescent properties of compounds 1 and 2 were evaluated.Besides,the catalytic activities in the Knoevenagel condensation reaction of two compounds were investigated.Compound 1 exhibits an excellent catalytic activity in the Knoevenagel condensation reaction at room temperature.

关 键 词：coordination polymer dicarboxylic acid LUMINESCENCE catalytic properties Knoevenagel condensation reaction 

分 类 号：O641.4[理学—物理化学]