高等学校化学学报 ›› 1999, Vol. 20 ›› Issue (12): 1842.

• 论文 • 上一篇    下一篇

H8[P4W14O58Na4(H2O)20]·16H2O的合成、晶体结构与性质

刘宗瑞1, 王力1, 王恩波2, 许林2, 邢彦3, 林永华3, 贾恒庆3   

  1. 1. 内蒙古民族师范学院, 通辽 028043;
    2. 东北师范大学化学系, 长春 130024;
    3. 中国科学院长春应用化学研究所, 长春 130022
  • 收稿日期:1998-12-17 出版日期:1999-12-24 发布日期:1999-12-24
  • 通讯作者: 王恩波
  • 作者简介:刘宗瑞,男,45岁,副教授.
  • 基金资助:

    吉林大学无机水热合成开放实验室基金资助课题

Synthesis, Crystal Structure and Properties of H8[P4W14O58Na4(H2O)20]·16H2O

LIU Zong-Rui1, WANG Li1, WANG En-Bo2, XU Lin2, XING Yan3, LIN Yong-Hua3, JIA Heng-Qing3   

  1. 1. Inner Mongolia Teachers College of Nationalities, Tongliao 028043, China;
    2. Department of Chemistry, Northeast Normal University, Changchun 130024, China;
    3. Changchun Institute of Applied Chemistry, The Chinese Academy of Sciences, Changchun 130022, China
  • Received:1998-12-17 Online:1999-12-24 Published:1999-12-24

摘要: 用水热法合成了H8[P4W14O58Na4(H2O)20]·16H2O,通过X射线单晶衍射、元素分析和IR进行了结构表征,用TG-DTA研究了热稳定性.晶体属三斜晶系,P1 空间群,a=1.1379(2)nm,b=1.3632(3)nm,c=1.6271(3)nm;α=78.20(3)°,β=71.20(3)°,γ=71.62(3)°;V=2.2525(8)nm3,Z=1,Mr=4374.38,Dc=3.225mg/cm3,μ=18.007mm-1,F(000)=1972,R=0.0742,Rw=0.2004.标题化合物的阴离子是由两个PW7O29Na2(H2O)10亚单元通过与两个磷原子上键合的氧连接而成,分子内形成了一个0.6614nm×0.3189nm的微孔.

关键词: 钨磷杂多化合物, 晶体结构, 热稳定性

Abstract: Anovel heteropoly tungstophosphates, H8[P4W14O58Na4(H2O)20]·16H2O, was synthesized by hydrothermal method and characterized by elemental analysis, IR spectrum and single crystal X-ray structure analysis. The thermal stability of the compound was investigated by using TG-DTA. The crystaLIs triclinic system with space group P1, a = 1.1379(2) nm, b = 1.3632(3) nm, c = 1.6271(3) nm; α=78.20(3)°, β=71.20(3)°, γ=71.62(3)°; V = 2.2525(8) nm3, Z=1, Mr= 4374.38, Dc=3.225mg/cm3, μ=18007 mm-1, F(000)= 1972, R = 0.0742, Rw= 0.2004 . The result of structure analysis shows that the anion of the compound consists of two PW7O29Na2(H2O)10subunits and two linked phosphorous atoms. Akind of microporous with size of 0.6614 nm× 0.3189 nm was formed in the crystal structure.

Key words: Heteropoly tungstophosphate, Crystal structure, Thermal stability

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