The Studies on Kinetics of Substitution Reaction of Cobalt(Ⅲ)Complex

Ye Baohui; Zeng Tianxian; Han Ping; Ji Liangnian

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The Studies on Kinetics of Substitution Reaction of Cobalt(Ⅲ)Complex

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- The Studies on Kinetics of Substitution Reaction of Cobalt(Ⅲ)Complex
- Acta Scientiarum Naturalium Universitatis SunYatseni Vol. 33, Issue 1, Pages: 49-54(1994)
- 作者机构：
  
  1. 中山大学化学系
  2. 河南省中原制药厂
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：1994，
  
  Published Online：25 January 1994，
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Ye Baohui, Zeng Tianxian, Han Ping, et al. The Studies on Kinetics of Substitution Reaction of Cobalt(Ⅲ)Complex. [J]. Acta Scientiarum Naturalium Universitatis SunYatseni 33(1):49-54(1994)
DOI：

Ye Baohui, Zeng Tianxian, Han Ping, et al. The Studies on Kinetics of Substitution Reaction of Cobalt(Ⅲ)Complex. [J]. Acta Scientiarum Naturalium Universitatis SunYatseni 33(1):49-54(1994) DOI：

摘要

用分光光度法研究了在ｐＨ为８．５７的３０％（ｖ／ｖ）乙醇溶液中，甘氨酸与二羟基二邻菲罗琳钴（Ⅲ）配合物取代反应的动力学。提出其反应机理为交换高解机理，根据静态平衡，推导其反应速度公式，并求得其反应的△Ｈ￣＋＝８２．８３ｋＪ·ｍｏｌ￣（－１），△Ｓ￣＋＝７９．４２Ｊ·ｍｏｌ￣（－１）·Ｋ￣（－１）。

Abstract

The kinetic of substitution reaction of hydroxy ligands from cis-di- hydroxybis(1

10-phenanthroline)cobalt(Ⅲ)ion by glycine in 30%(v/v)wa-ter-ethanol medium has been studied by spectrophotometrically at pH=8.57。The dissociative interchange mechanism(I_d ) was suggested. The rate equa- tion of the substitution reaction was established. The activation parameters △H￣+and △S￣+of the reaction was 82.83 kJ·mol￣(-1) and 79.42 J·mol￣(-1)·K￣(-1)

respectively.

关键词

甘氨酸邻菲罗啉钴（Ⅲ）络合物反应动力学

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