滴定量热法研究UO_2(TTA)_2·TBP与N503或TOPO四元络合反应  

STUDIES OF THE REACTION OF UO_2(TTA)_2·TBP WITH N503 AND TOPO BY TITRATION CALORIMETRY

作　　者：杨桦[1] 李忠[1] 彭立娥[1] 王文清[1] 

机构地区：[1]北京大学技术物理系

出　　处：《核化学与放射化学》1990年第4期193-196,共4页Journal of Nuclear and Radiochemistry

摘　　要：本文研究了UO_2(TTA)_2·TBP与N503或TOPO在甲苯中的四元络合反应,实验结果生成UO_2(TTA)_2·TBP·N503或UO_2(TTA)_2·TBP·TOPO四元配合物,用计算机程序进行数据采集和最小二乘分析的反复运算拟合,得到298K下.四元络合反应的△H。lgβ,△G和△S值.Titration calorimetry is used to determine the thermodynamic function (ΔH, Igβ, ΔG, ΔS) of the addition reaction between UO2(TTA)2,TBP and N503 or TOPO in toluene. A ternary synergistic effect is found in the systems. The adduct species are found to exist in the form of UO2(TTA)2 · TBP· N503 and UO2(TTA)2 · TBP ·TOPO.Synergism is interpreted as due to the expansion of the metal coordination sphere.

关 键 词：UO2(TTA)2 TBP N503 TOPO 量热法 

分 类 号：O614.62[理学—无机化学]