物理化学学报 >> 2003, Vol. 19 >> Issue (11): 1085-1088.doi: 10.3866/PKU.WHXB20031121

研究简报 上一篇    下一篇

Zn(Thr)Ac2•2H2O固态配合物的制备及标准生成焓

任宜霞;陈三平;高胜利   

  1. 陕西省物理无机化学重点实验室,西北大学化学系,西安　710069
  • 收稿日期:2003-05-12 修回日期:2003-07-21 发布日期:2003-11-15
  • 通讯作者: 高胜利 E-mail:gaoshli@nwu.edu.cn

Preparation and Standard Enthalpy of Formation of Zn(Thr) Zn(Thr)Ac2•2H2O

Ren Yi-Xia;Chen San-Ping;Gao Sheng-Li   

  1. Shaanxi Key Laboratory of Physico-Inorganic Chemistry, Department of Chemistry, Northwest University, Xi′an　710069
  • Received:2003-05-12 Revised:2003-07-21 Published:2003-11-15
  • Contact: Gao Sheng-Li E-mail:gaoshli@nwu.edu.cn

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摘要： 在水-丙酮混合溶剂中合成了未见文献报导的Zn(Thr)Ac2•2H2O固态配合物,通过化学分析、元素分析、IR、XRD和TG-DTG等对其组成、结构及热稳定性进行了研究.用微量热法测定了配合物在298.15 K时在纯水中的溶解焓,计算了Zn(Thr)2＋(aq,∞)和Zn(Thr)Ac2•2H2O(s) 的标准摩尔生成焓分别为(955.24±5.70) kJ•mol－1和(-570.92±5.71) kJ•mol－1.

关键词: Zn(Thr)Ac2•, 2H2O, 制备, 表征, 标准摩尔生成焓

Abstract: The complex of Zn Ac2•2H2O and Threonine was prepared in the mixed solvent of water - acetone, the composition of the complex was identified as Zn(Thr) Ac2•2H2O by chemical, elemental analyses. The structure and thermal stability of the title complex were investigated by IR, XRD and TG - DTG. Enthalpy of solution of the complex was determined at 298.15 K in water by microcalorimetry.Standard molar enthalpy of formation of Zn(Thr)2＋(aq,∞) and that of Zn(Thr) Ac2•2H2O (s)were calculated to be (955.24 ± 5.70) kJ•mol-1 and (-570.92±5.71) kJ•mol-1,respectively.

Key words: Zn(Thr)Ac2•, 2H2O, Preparation, Characterize, Standard molar enthalpy of formation