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化学学报
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化学学报 ›› 2007, Vol. 65 ›› Issue (20): 2349-2355. 上一篇    

研究论文

[Gd2(Gly)6(H2O)4](ClO4)6(H2O)5的合成、晶体结构与热化学研究

卢基林1，刘北平1，谭志诚*,2，张大顺1，李琳1，陈远道1，史全2   

  1. (1湖南文理学院化学化工系 常德 415000)
    (2中国科学院大连化学物理研究所热化学实验室 大连 116023)
  • 投稿日期:2007-05-01 修回日期:2007-09-05 发布日期:2007-10-28
  • 通讯作者: 谭志诚

Synthesis, Crystal Structure and Thermochemical Study of [Gd2(Gly)6(H2O)4](ClO4)6(H2O)5

LU Ji-Lin1； LIU Bei-Ping1； TAN Zhi-Cheng*,2； ZHANG Da-Shun1； LI Lin1 ； CHEN Yuan-Dao1； SHI Quan2   

  1. (1 Department of Chemistry and Chemical Engineering, Hunan University of Arts and Science, Changde 415000)
    (2 Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023)
  • Received:2007-05-01 Revised:2007-09-05 Published:2007-10-28
  • Contact: TAN Zhi-Cheng

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利用微波技术合成了配合物[Gd2(Gly)6(H2O)4](ClO4)6(H2O)5, 进行了化学成分分析、红外表征和热重分析. 应用X衍射仪测定其晶体结构, 该晶体为一维链结构, 属三斜晶系, P 空间群, 晶胞参数: a＝1.1569(17) nm, b＝1.4138(2) nm, c＝1.5642(2) nm, α＝96.910(2)°, β＝102.735(2)°, γ＝105.512(2)°, V＝2.3606(6) nm3, Z＝2, Dc＝2.144 g•cm－3. 采用精密溶解-反应量热计, 通过设计热化学循环, 计算出了该配合物的标准摩尔生成焓为 －(7960.73±3.23) kJ•mol－1.

关键词: 高氯酸钆, 甘氨酸, 配合物, 晶体结构, 标准摩尔生成焓

The complex [Gd2(Gly)6(H2O)4](ClO4)6(H2O)5 was synthesized by a microwave technology characterized by IR spectra and a TG-DTG technique. The crystal structure of the complex was determined by an X-ray diffraction method. The crystal is a 1D chain structure, which belongs to a triclinic system with space group P , and cell parameters: a＝1.1569(17) nm, b＝1.4138(2) nm, c＝1.5642(2) nm, α＝96.910(2)°, β＝102.735(2)°, γ＝105.512(2)°, V＝2.3606(6) nm3, Z＝2, and Dc＝2.144 g•cm－3. By isoperibol solution-reaction calorimetry, the standard molar enthalpy of formation of the complex was determined to be －(7960.73±3.23) kJ•mol－1.

Key words: gadolinium perchlorate, glycine, complex, crystal structure, standard molar enthalpy of formation