slope analyses. Besides the solvated NpO2+ ion, two NpO2+ formate species (NpO2(Form)n1-n; n = 1, 2) are identified. Application of the law of mass action yields the temperature dependent conditional stability constants log β'n(T) at a given ionic strength. These data are extrapolated to IUPAC reference state conditions (Im = 0) using the specific ion interaction theory (SIT). The results show, that
NpO2 +与
甲酸在
水溶液中形成复合物的温度和离子强度依赖性通过吸收光谱法研究(Im = 0.5-4.0 mol kg-1,T = 20-85°C,[Form-]总计= 0-0.65 mol kg-1),扩展X射线吸收精细结构光谱(EXAFS)和量子
化学方法。络合反应的复杂
化学计量和热力学函数由吸收光谱的峰解卷积和斜率分析确定。除了溶剂化的 +离子外,还鉴定出两种 +
甲酸盐物种( (Form)n1-n; n = 1,2)。在给定的离子强度下,应用质量作用定律可得出温度相关的条件稳定性常数logβ'n(T)。使用特定离子相互作用理论(SIT)将这些数据外推至IU
PAC参考状态条件(Im = 0)。结果表明,随着温度升高,logβ01(20°C)= 0.67±0.04降低约0.1对数单位,logβ02(20°C)= 0.11±0.11增加约0.2对数单位。用积分的Van't