Hydrothermal Synthesis,Crystal Structure,and Luminescent Properties of Two Zinc(II) and Cadmium(II) 3D Metal‐Organic Frameworks |
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| Authors: | Cheng‐Yan Zhang Ming‐Yan Wang Qiu‐Tong Li Bao‐Hua Qian Xu‐Jie Yang Xing‐You Xu |
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| Institution: | 1. Key Laboratory of Soft chemistry and Functional Materials, Ministry of Education, Nanjing University of Science and Technology, Nanjing, 210094, P. R. China;2. Department of Chemical Engineering, Huaihai Institute of Technology, Lianyungang, 222005, P. R. China;3. Huaiyin Institute of Technology, Huaiyin, 223003, P. R. China |
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| Abstract: | Two zinc(II) and cadmium(II) metal‐organic frameworks with mixed ligands, {Zn2(biim‐4)2(TDC)2] · 2.5H2O}n ( 1 ) and {Cd2(biim‐4)2(TDC)2 · 2H2O]}n ( 2 ) biim‐4 = 1,1′‐(1,4‐butanediyl)bis(imidazole); H2TDC = thiophene‐2,5‐dicarboxylic acid], were hydrothermally synthesized. Both of them are characterized by elemental analysis, IR spectroscopy, and single crystal X‐ray diffraction. In 1 , the four‐connected ZnII nodes are connected by four linear ligands extending into a 3D network, which further integrates a fivefold interpenetrating diamond 3D topological network and the free water molecules distribute in void space, whereas in 2 , the CdII ions are in a distorted octahedral arrangement linked by TDC2– and biim‐4 ligands to construct a 3D framework. In topology analysis, C11 and C14 are simplified as 3‐connected nodes and the 3D framework displays a (3,5)‐connected net. Furthermore, the thermal and photoluminescent properties of 1 and 2 were also studied. |
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| Keywords: | Metal‐organic frameworks Diamondoid nets Five‐fold interpenetration (3 5)‐Connected nets Luminescence |
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