双组分稀土与三溴偶氮胂配位体系速差动力学分析的经验规律  

Investigation of the Rule for Rate Differentiation Kinetics in the Coordination System of Bicomponent Rare Earth and Tribromoarsenazo

作　　者：林智信[1] 杨林[1] 方贤安[1] 曾福生[1] 

机构地区：[1]武汉大学化学系,武汉430072

出　　处：《化学学报》1991年第9期900-905,共6页Acta Chimica Sinica

基　　金：国家自然科学基金

摘　　要：本文系统地研究了稀土与三溴偶氮胂(TBA)的动力学行为,获得经验速率方程 R=k[RE(H_2O)_m^(3+)]·[TBA]~2·[H_3O^+]^(-1).考察 RE_1-RE_2-TBA 体系后表明:双组分稀土的动力学行为是单个稀土迭加的结果,计算机的拟合图谱[A-t 和 ln(A(?)-A)-t]显示出这一特征.据此预示了可用 TBA 做速差分析的双组分稀土体系,实验结果在允许误差范围以内.本文为 RE_1-RE_2-TBA 体系的速差分析提供了有意义的经验规律.The kinetic parameters of the reaction between rare earths and tribromoarsenaze(TBA) have been systematically studied.From the equation it was shown that thekinetic behavior of bicomponent system is an additive result of two individual rareearth ions.Therefore,it can be presaged that the differential rate analysis ofbicomponent system of lanthanide with TBA con be performed.These experimentalresults are in permissible error range.Some significant guiding principles fordifferential rate analysis of RE_1-RE_2-TBA system were proposed.

关 键 词：稀土配合物 三溴偶氮胂 速差分析 

分 类 号：O614.33[理学—无机化学]