| 镍(Ⅱ)-N-(对位取代苯基)亚氨基二乙酸配合物的生成反应动力学及机理研究 |
| KINETICS AND MECHANISM OF BINARY COMPLEX OF N-(p-SUBSTITUTED PHENYL)IMINO-DIACETIC ACID WITH NICKEL(Ⅱ) |
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| 摘要: 本文选择N-(对位取代苯基)亚氨基二乙酸(p-RC6H4N(CH2COOH)2,R=CH3O,CH3,H,Cl,简写为PRPh1DA,以NR(OH)2或H2L表示)为配体,采用断流分光光度计研究了Ni(Ⅱ)与此配体生成配合物的反应动力学。结果发现,两性离子具有较高的反应活性,且反应活性随配体碱性增大而降低,其反 |
| 关键词: N-(对取代苯基)亚氨基二乙酸 镍(Ⅱ) 断流分光光度法 直线自由能关系 |
| 基金项目: |
| Abstract: The kinetics of the complexation reaction of N-(p- substituted phcnyl) imino-diacetic acid with nickel(Ⅱ) was determined by stopped-flow method at 25± 0.1℃ and 0.1mol·dm-3KNO3. The experimental results showed that not only the ligand anion but also the zwittcrion is an attacking species in the complexation reaction. The reaction takes place by way of two competing paths. It was found that linear free energy relationships exist not only between the reactivity of the zwittcrion and base strength of the ligands, but also exist between the dissociation rate constants and the base strength of ligands and the stability constants of the binary complexes. |
| Keywords: N-(p-substituted phenyl) imino-diacetic acid nickel(Ⅱ) stopped-flow spectrophotometer linear free energy relationship |
| 投稿时间：1990-12-30 |
| 摘要点击次数: 1423 |
| 全文下载次数: 1454 |
| 林华宽,刘在均,陈荣悌.镍(Ⅱ)-N-(对位取代苯基)亚氨基二乙酸配合物的生成反应动力学及机理研究[J].无机化学学报,1992,8(3):339-342. |
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