Specific Complexation of Metal Oxo Cations

在这项由无机化学、生物无机化学和金属有机化学计划支持的项目中，加州大学伯克利分校的Kenneth N.Raymond将合成各种专为与氧金属阳离子结合而设计的配体，特别是铀酰和钒。这项工作对核电工业、采矿技术和环境监测与控制具有重要意义。所采用的策略是基于氧金属阳离子不符合其他阳离子的“台球”模型的前提，为了有效地包裹铀酰和钒基阳离子，配体设计将包括氮-氢基团，这些基团的位置被限制为氢键连接到阳离子(S)的氧基(S)上。对所得络合物的表征将包括X射线衍射结构测定、稳定常数测定、溶液中的电化学研究和各种光谱分析。

In this project supported by the Inorganic, Bioinorganic and Organometallic Chemistry Program, Kenneth N. Raymond of the University of California at Berkeley will synthesize various ligands designed to specifically bind with oxo-metal cations, and in particular, uranyl and vanadyl. This work has relevance to the nuclear power industry, mining technology and environ- mental monitoring and control. The strategy to be employed is based on the premise that oxo- metal cations do not fit the "billiard ball" model for other cations, and to effectively encapsulate the uranyl and vanadyl cations, the ligand design will incorporate nitrogen-hydrogen groups which are constrained in position to hydrogen bond to the oxo-group(s) of the cation(s). Characterization of the resultant complexes will include structure determination by x-ray diffraction, stability constant determination, electro- chemical studies in solution and various spectroscopic analyses.