高等学校化学学报 ›› 2004, Vol. 25 ›› Issue (1): 103.

• 研究论文 • 上一篇    下一篇

酰胺多胺配体Cu(Ⅱ)配合物的稳定性和酸分解动力学

郭延河1, 高东昭1, 林海2, 林华宽1, 盖庆春1, 朱守荣1   

  1. 1. 南开大学化学系;
    2. 吸附与分离功能高分子材料国家重点实验室, 天津 300071
  • 收稿日期:2003-02-18 出版日期:2004-01-24 发布日期:2004-01-24
  • 通讯作者: 林华宽(1944年出生),男,博士,教授,博士生导师,从事配位物理化学研究.E-mail:hklin@nankai.edu.cn E-mail:hklin@nankai.edu.cn
  • 基金资助:

    国家自然科学基金(批准号:29971018)资助

Stability, Kinetics of Acid Decomposition of Cu(Ⅱ) Complexes of Novel Polyamide-polyamino Ligand

GUO Yan-He1, GAO Dong-Zhao1, LIN Hai2, GE Qing-Chun1, LIN Hua-Kuan1, ZHU Shou-Rong1   

  1. 1. Department of Chemistry;
    2. State Key Laboratory of Functional Polymer Materials for Absorption and Separation, Nankai University, Tianjin 300071, China
  • Received:2003-02-18 Online:2004-01-24 Published:2004-01-24

摘要: 合成了酰胺多胺配体(L),测定了5,10,15和25℃时其Cu(Ⅱ)配合物的稳定常数,用标准摩尔焓变ΔHm0和标准摩尔熵变ΔSm0解释了温度对稳定性的影响,并利用停流技术(Stopped-flow)研究了CuL配合物在0.04~2.3mol/L(I=2.34mol/LNaCl)盐酸溶液中的酸分解动力学.提出了反应机理,并求得了速控步骤的活化能Ea,标准摩尔活化熵ΔSm0和标准摩尔活化焓ΔHm0

关键词: 酰胺多胺配体, Cu(Ⅱ)配合物, 稳定性, 酸分解

Abstract: A polyamide polyamino ligand was synthesized. The stability constants of its copper (Ⅱ) complexes at 5, 10, 15 and 25 ℃ were determined. The standard molar entropy of formation ΔSm0 and standard molar enthalpy of formation ΔHm0 were obtained and used to discuss the effect of temperature on the stability of the complexes. The acid decomposition of CuL assisted by 0.04—2.34 mol/L(I= 2.34 mol/L NaCl) hydrochloride was investigated by using stopped-flow technique. The mechanism was given and the activation energy Ea, standard molar entropy of activation ΔSm0 and standard molar enthalpy of activation ΔHm0 of the rate-determining step were calculated.

Key words: Polyamide-polyamino ligand, Copper(Ⅱ) coordination complex, Stability, Acid decomposition

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