配位化合物中的线性热力学函数关系——V用改进的离子选择电极的浓差电池法研究氨基酸与铜(Ⅱ)配合物的线性自由能关系  

The Linear Free Energy Relationship in the Coordination Compounds Formed from Aminoacids with Cu(II) Using Modified Electrolyte-Concntration Cell Method

作　　者：陈梓元[1] 王琴芬[1] 陆昌耀 张颖[1] 王镜芳[2] 

机构地区：[1]上海师范大学,上海市200234 [2]上海工程技术大学纺织学院,上海市200061

出　　处：《纺织基础科学学报》1991年第3期207-212,共6页

摘　　要：用改进的离子选择电极的浓差电池法测定了在35℃,μ=0.16mol·L^(-1)KNO_3中氨基酸与铜(Ⅱ)配合物的组成和各级稳定常数,研究了配合物中线性自由能关系。The stability constants of lgK_(cuL)and lgK_(cul2)coordination compounds formcd from some aminoacids have been determined by modified Electroiyte-Concentration Cell Meth- od at 35±0.1℃ in the presence of 0.16 mol,1^(-1) KNO_3. The linear free energy relations between the stability constant of coordination com- pounds and the base strength of the ligands have been investigated. In this paper, the experiment data using the △ E values of the difference of EMF of the Electrolyte-Concentration Cell have been calculated; they not only can measure the com- ponent and the each order stability constant of coordination compounds, but also eliminate the variated effectsof pH values of electrolyte on the potential Value of the Ion-Selective Electrode. The accuracy of the experiment results has been vaised.

关 键 词：离子选择电极 线性自由能关系 氨基酸 铜 配合物 

分 类 号：O641.4[理学—物理化学] O629.71[理学—化学]