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

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.

Abstract: 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.