Pressure Dependence of Carbonate Exchange with [NpO2(CO3)3]4– in Aqueous Solutions

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• 作者：Corey D. Pilgrim ; Mavrik Zavarin ; William H. Casey
• 刊名：Inorganic Chemistry
• 出版年：2017
• 出版时间：January 3, 2017
• 年：2017
• 卷：56
• 期：1
• 页码：661-666
• 全文大小：338K
• ISSN：1520-510X

文摘

The rates of ligand exchange into the geochemically important [NpO₂(CO₃)₃]^4– aqueous complex are measured as a function of pressure in order to complement existing data on the isostructural [UO₂(CO₃)₃]^4– complex. Experiments are conducted at pH conditions where the rate of exchange is independent of the proton concentration. Unexpectedly, the experiments show a distinct difference in the pressure dependencies of rates of exchange for the uranyl and neptunyl complexes.