物理化学学报 >> 1993, Vol. 9 >> Issue (04): 565-568.doi: 10.3866/PKU.WHXB19930427

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配合物中直线自由能关系的进一步探讨

林华宽; 刘在均; 唐祥海; 陈荣悌   

  1. 南开大学化学系,天津 300071
  • 收稿日期:1991-12-02 修回日期:1992-08-15 发布日期:1993-08-15
  • 通讯作者: 林华宽

Further Study of Linear Free Energy Relationships in Complex Compounds

Lin Hua-Kuan; Liu Zai-Jun; Tang Xiang-Hai; Chen Rong-Ti   

  1. Department of Chemistry, Nankai University, Tianjin 300071
  • Received:1991-12-02 Revised:1992-08-15 Published:1993-08-15
  • Contact: Lin Hua-Kuan

关键词: 直线自由能, 稳定性, N-(取代苯基)亚氨基二乙酸, 氮三乙酸

Abstract:

The stability constants of binary complex eompounds formed by Ni(Ⅱ), Co(Ⅱ), Zn(Ⅱ)-N-(meta or para substituted phenyl) Iminodiacetic acid (m or p-RPhIDA) and of ternary complex compounds formed by Ni(Ⅱ), Co(Ⅱ), Zn(Ⅱ)-RPhIDA-Nitrilo-triacetic acid (NTA) were determined by pH method at 25±0.1 ℃ in the presence of 0.1 mol·dm~(-3)BaC_(10)_4. Their results were calculated by TITFIT program. It was found that linear free energy relationships did exist between the stability of there binary and ternary complex compounds and the base strengths of Ligands RPhIDA.

Key words: LFER, Stability, RPhIDA, NTA