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

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.