高等学校化学学报 ›› 1997, Vol. 18 ›› Issue (5): 676.

• 论文 • 上一篇    下一篇

[Y(NTO)2NO3(H2O)5]·2H2O的制备、晶体结构和热分解机理的研究

宋纪蓉1, 胡荣祖2, 李福平2, 毛治华3, 周宗华3, 洪洲3   

  1. 1. 西北大学化工系, 西安, 710069;
    2. 西安近代化学研究所, 西安, 710065;
    3. 四川大学化学系及分析测试中心
  • 收稿日期:1996-07-24 出版日期:1997-05-24 发布日期:1997-05-24
  • 通讯作者: 宋纪蓉, 女, 38岁, 副教授.
  • 作者简介:宋纪蓉, 女, 38岁, 副教授.
  • 基金资助:

    火炸药燃烧国防科技重点实验室科技基金

Preparation, Crystal Structure and Thermolysis Mechanism of [Y(NTO)2NO3(H2O)5]·2H2O

SONG Ji-Rong1, HU Rong-Zu2, LI Fu-Ping2, MAO Zhi-Hua3, ZHOU Zong-Hua3, HONG Zhou3   

  1. 1. Department of Chemical Engineering, Northwest University, Xi'an, 710069;
    2. Xi'an Modern Chemistry Research Institute, Xi'an, 710065;
    3. Depurtment of Chemistry.Testing and Analytical Center, Sichuun University, Chengdu, 610064
  • Received:1996-07-24 Online:1997-05-24 Published:1997-05-24

摘要: 合成了[Y(NTO)2NO3(H2O)5]·2H2O(NTO为3-硝基-1,2,4-三唑-5-酮),并测定了晶体结构,晶体属单斜晶系,空间群Cm,晶胞参数:a=0.6773(2)urn,b=20866(2)um,c=0.6551(1)um;β=102.98(2)°,V=0.9021(1)um3,Z=2,DC=1.970g·cm-3,μ=33.49cm-1,F(000)=54O,R=0.032.中心Y(Ⅲ)与2个NTO的羰基氧原子、1个NO3的1个氧原子及5个水分子的氧原子配位,形成畸变的十二面体.Y-O键长在0.2283~0.2478um之间.

关键词: NTO化配合物, 制备, 晶体结构, 热分解机理

Abstract: [Y(NTO)2NO3 (H2O)5].2H2Owas prepared by mixing the aqueous solution oflithium 3-nitro-1 2, 4-triazol-5uonate and the dilute nitric acid solution of yttrium oxide.The single crystal structure was determined by a four-circle X-ray diffractometer.The crystal is monoclinic, space group Cm with crystal parameters of a = 0.6773(2) nm, b= 2.0866(2)nm, c=0.6551(1) nm; β=102.98(2)°, V=0.9021(1) nm3, Z=2, Dc=1.970 g.cm-3,p=33.49 cm-1, F(000) =540, R=0.032.The two carbonyls of NTOanion, one NO3-, and five water molecules are coordinated to Y3+.The coordinate bond lengths are between 0.2283 nm and 0.2478 nm, so the distorted dodecahedron is formed.Based on the thermal analysis, the thermolysis mechanism of [Y(NTO)2NO3(H2O)5].2H2Ohas been derived.

Key words: Yttrium complex of NTO, Preparation, Crystal structure, Thermolysis mechanism

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