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高等学校化学研究 ›› 2011, Vol. 27 ›› Issue (4): 536-539.

• Articles • 上一篇    下一篇

Synthesis and Structure of an Organo-templated Oxouranium Phosphite

YU Jian-guo1* and ZHAO Yong-nan2   

  1. 1. Tianjin Key Laboratory of Fiber Modification and Functional Fiber, College of Environment and Chemical Engineering,
    2. Institute of Nanostructured Materials, School of Materials Science and Engineering, Tianjin Polytechnic University, Tianjin 300160, P. R. China
  • 收稿日期:2011-01-10 修回日期:2011-04-20 出版日期:2011-07-25 发布日期:2011-06-29
  • 通讯作者: YU Jian-guo E-mail:jgyu1977@yahoo.com.cn
  • 基金资助:

    Supported by the National Natural Science Foundation of China(Nos.20771030, 20671025).

Synthesis and Structure of an Organo-templated Oxouranium Phosphite

YU Jian-guo1* and ZHAO Yong-nan2   

  1. 1. Tianjin Key Laboratory of Fiber Modification and Functional Fiber, College of Environment and Chemical Engineering,
    2. Institute of Nanostructured Materials, School of Materials Science and Engineering, Tianjin Polytechnic University, Tianjin 300160, P. R. China
  • Received:2011-01-10 Revised:2011-04-20 Online:2011-07-25 Published:2011-06-29
  • Contact: YU Jian-guo E-mail:jgyu1977@yahoo.com.cn
  • Supported by:

    Supported by the National Natural Science Foundation of China(Nos.20771030, 20671025).

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摘要： A novel layered oxouranium phosphite open-structure [(C10H24N2)(H2O)][(UO2)2(HPO3)3](denoted as TJPU-8, TJPU=Tianjin Polytechnic University) was hydrothermally synthesized with isophorondiamine(IPDA) as the template. Single crystal structure refinement disclosed that TJPU-8 crystallized in the monoclinic space group P21c with cell parameters a=1.8346(9) nm, b=0.6734(1) nm, c=2.0639(0) nm, β=114.61(5)°, V=2.3182(8) nm3, Z=2. TJPU-8 was constructed by UO7 monomer, U2O12 dimer and HPO3 groups. The monomeric UO7 or dimeric U2O12 was connected by HPO3 groups to form two types of 4-ring chains. An undulating sheet was then generated by connecting these two types of chains via HPO3 bridges. The layer structure formed by stacking the sheets along the a direction via the strong H-bonds of organoamine cations and water molecules intercalated in the interlayer spaces with the framework oxygen atoms. Although a mixture of cis- and trans-IPDA was used, only cis-IPDA served as the template. A typical green light emission of TJPU-8 is observed when excited by 266 nm laser.

关键词: Hydrothermal synthesis, Open-framework compound, Single crystal structure, Oxouranium phosphite

Abstract: A novel layered oxouranium phosphite open-structure [(C10H24N2)(H2O)][(UO2)2(HPO3)3](denoted as TJPU-8, TJPU=Tianjin Polytechnic University) was hydrothermally synthesized with isophorondiamine(IPDA) as the template. Single crystal structure refinement disclosed that TJPU-8 crystallized in the monoclinic space group P21c with cell parameters a=1.8346(9) nm, b=0.6734(1) nm, c=2.0639(0) nm, β=114.61(5)°, V=2.3182(8) nm3, Z=2. TJPU-8 was constructed by UO7 monomer, U2O12 dimer and HPO3 groups. The monomeric UO7 or dimeric U2O12 was connected by HPO3 groups to form two types of 4-ring chains. An undulating sheet was then generated by connecting these two types of chains via HPO3 bridges. The layer structure formed by stacking the sheets along the a direction via the strong H-bonds of organoamine cations and water molecules intercalated in the interlayer spaces with the framework oxygen atoms. Although a mixture of cis- and trans-IPDA was used, only cis-IPDA served as the template. A typical green light emission of TJPU-8 is observed when excited by 266 nm laser.

Key words: Hydrothermal synthesis, Open-framework compound, Single crystal structure, Oxouranium phosphite