引用本文:
陈荣悌, 邓国才, 江琦, 穆瑞才. 高效液相色谱法研究——N,N-二烷基二硫代氨基甲酸合镍(Ⅱ)螯合物配体交换反应的平衡与动力学[J]. 物理化学学报,
1989, 5(05): 626-629.
doi:
10.3866/PKU.WHXB19890524
Citation: Chen Rongti*, Deng Guocai, Jiang Qi, Mu Ruicai. EQUILIBRIUM AND KINETIC STUDY ON THE LIGAND EXCHANGE REACTION BETWEEN N,N-DIsUBSTITUTED DITHIOCARBAMATE CHELATES OF NICKEL(Ⅱ) BY MEANS OF HIGH-PERFORMANCE LIQUID CHROMATOGRAPHY[J]. Acta Physico-Chimica Sinica, 1989, 5(05): 626-629. doi: 10.3866/PKU.WHXB19890524
Citation: Chen Rongti*, Deng Guocai, Jiang Qi, Mu Ruicai. EQUILIBRIUM AND KINETIC STUDY ON THE LIGAND EXCHANGE REACTION BETWEEN N,N-DIsUBSTITUTED DITHIOCARBAMATE CHELATES OF NICKEL(Ⅱ) BY MEANS OF HIGH-PERFORMANCE LIQUID CHROMATOGRAPHY[J]. Acta Physico-Chimica Sinica, 1989, 5(05): 626-629. doi: 10.3866/PKU.WHXB19890524
高效液相色谱法研究——N,N-二烷基二硫代氨基甲酸合镍(Ⅱ)螯合物配体交换反应的平衡与动力学
English
EQUILIBRIUM AND KINETIC STUDY ON THE LIGAND EXCHANGE REACTION BETWEEN N,N-DIsUBSTITUTED DITHIOCARBAMATE CHELATES OF NICKEL(Ⅱ) BY MEANS OF HIGH-PERFORMANCE LIQUID CHROMATOGRAPHY
Abstract:
In this article, equilibrium and kinetics of the ligand exchange reaction between a series of N,N-disubstituted dithiocarhamate chelates of Nickel (Ⅱ)
have been studied by means of high-performance liquid chromatography in various solvents such as chloroform, dichloromethane, methylbenzene, ethyl acetate and DMF (dimethyl formamide) etc. at 30 ℃. The activation parameters of two selected reactions with different disubstituted alkyl groups have been determined in toluene. The experimental results indicate that steric effect of the alkyl groups may influence to some extent the rate of ligand exchange. The reactions of ligand exchange conform to an S_N2 mechanism. Statistical factor seems to enter the evaluation of the equilibrium constants. Solvation effect may contribute to the influence of solvents on reaction rate.
have been studied by means of high-performance liquid chromatography in various solvents such as chloroform, dichloromethane, methylbenzene, ethyl acetate and DMF (dimethyl formamide) etc. at 30 ℃. The activation parameters of two selected reactions with different disubstituted alkyl groups have been determined in toluene. The experimental results indicate that steric effect of the alkyl groups may influence to some extent the rate of ligand exchange. The reactions of ligand exchange conform to an S_N2 mechanism. Statistical factor seems to enter the evaluation of the equilibrium constants. Solvation effect may contribute to the influence of solvents on reaction rate.
扫一扫看文章
计量
- PDF下载量: 1905
- 文章访问数: 2624
- HTML全文浏览量: 40
下载:
