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Hydrothermal Synthesis of Five New Coordination Polymers Based on Benzophenone-2, 4′-dicarboxylic Acid and N-Donor Spacers

Authors

  • Jiakun Xu,

    1. Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, 266071, P. R. China
    2. Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao, 266100, P. R. China
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  • Xiaochun Sun,

    1. National Oceanographic Center, Qingdao, 266071, P. R. China
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  • Yuhua Fan,

    1. Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao, 266100, P. R. China
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  • Dr. Caifeng Bi,

    1. Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao, 266100, P. R. China
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  • Dr. Mi Sun

    Corresponding author
    1. Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, 266071, P. R. China
    • Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao, 266100, P. R. China
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Abstract

Five new coordination polymers, namely, [Ni2(L)2(4, 4′-bipy)3)]·H2O]n (1), [Ni2(L)2(O) (bpp)2]n (2), [Zn(L)(bib)0.5]n (3), [Zn(L)(PyBIm)]n (4), and [Zn3(L)2(OH)(im)]n (5) [H2L = benzophenone-2, 4′-dicarboxylic acid, 4, 4′-bipy = 4, 4′-bipyridine, bpp = 1, 3-bis(4-pyridyl)propane, PyBIm = 2-(4-pyridyl)benzimidazole, and im = imidazole] were synthesized under hydrothermal conditions. Structure determination revealed that compound 1 is a 3D network and exhibits a 4-connected metal-organic framework with (42.63.8) topology, whereas compounds 2, 3, 4, and 5 are two-dimensional layer structures. In compounds 24, dinuclear metal clusters are formed through carboxylic groups. In compound 5, trinuclear metal clusters are formed through μ3-OH and carboxylic groups. The carboxylic groups exhibit three coordination modes in compounds 15: monodentately, bidentate-chelating, and bis-monodentately. Furthermore, the luminescent properties for compounds 3, 4, and 5 were investigated.

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