物理化学学报 >> 1994, Vol. 10 >> Issue (06): 560-564.doi: 10.3866/PKU.WHXB19940615

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氮杂冠醚与碱金属离子配位反应的研究

马玉新, 卢祥生, 王连顺, 陈荣悌   

  1. 南开大学化学系，天津 300071
  • 收稿日期:1993-02-22 修回日期:1993-07-08 发布日期:1994-06-15
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Study on the Complexation of N-(para-Substituted Phenyl) Nitrogen-Hetero-15-Crown-5 with Alkali Ions by Titration Calorimetry

Ma Yu-Xin, Lu Xiang-Sheng, Wang Lian-Shun, Chen Rong-Ti   

  1. Department of Chemistry, Nankai University, Tianjin 300071
  • Received:1993-02-22 Revised:1993-07-08 Published:1994-06-15
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关键词: 滴定量热法, 熵滴定, N-(对位取代苯基)氮杂15冠5, 线性自由基, 线性焓, 线性热力学函数关系

Abstract:

The reactions between sodium iodide, potassium iodide and a series of N-(parasubstituted phenyl) nitrogen-hetero-15-crown-5 were studied by titration calorimetry at 25 ℃ in ethanol. It was found that the aza-crown ethers and the alkali metal ions form 1:1 complexes. The electron-donating substituent on the phenyl ring may enhance the ligation ability of the macrocyclic ligand. It was found that linear thermodynamic function relationships exist in the systems studied.

Key words: Titration calorimetry, Entropy titration, N-(psubstituted phenyl) nitrogen-hetero-15-crown-5, Linear free energy, Linear enthalpy relationships, Linear thermodynamic function relationships