摘要

An effective method was developed for the synthesis of three cluster-based frameworks with multifarious secondary building units (SBUs) and various structures, which were formulated as [Me2NH2](2)[Zn-10(BTC)(6)((3)-O)((4)-O)(H2O)(5)]3DMA9H(2)O (FJI-3), [Me2NH2](2)[Zn-9((3)-OH)(2)(BTC)(6)(H2O)(3)]5DMA6H(2)O (FJI-4) and [Me2NH2][Zn-3((3)-OH)(BTC)(2)DMF]H2O (FJI-5) (H3BTC = 1,3,5-benzenetricarboxylic acid, DMA = N,N-dimethyl acetamide and DMF = N,N-dimethyl formamide), respectively. X-ray structural analysis reveals that FJI-3 displays 3D highly porous metal-organic framework with four kinds of microporous cages constructed by two paddle-wheel Zn-2(CO2)(4), trimeric Zn3O(CO2)(6), and tetrameric Zn4O(CO2)(6) SBUs. FJI-4 exhibits 3D microporous MOFs with a dodecahedral cavities built by paddle-wheel Zn-2(CO2)(4) and trimeric Zn3O(CO2)(6). FJI-5 shows 3D microporous MOFs with an 1D channel assembled by the Zn3O(CO2)(6) SBUs. In addition, the fluorescence and sorption properties in these cluster-based frameworks were also investigated. Furthermore, the method employed in this work may provide an useful approach to the design and synthesis of novel cluster-based frameworks.

  • 出版日期2017-1
  • 单位昭通师范高等专科学校; 温州大学