Specific Complexation of Metal Oxo Cations

该奖项为研究提供了持续的支持， Kenneth N. 雷蒙德是哥伦比亚大学化学系的教授， 加州伯克利。 阳离子的形状选择性配体， 因为将产生锇和氧钒。 这些配体将是 设计用于稳定高氧化态金属中心 通过正常的坐标绑定，同时 掺入氢键供体以与氧代相互作用 阳离子 初步结果表明，氢键 如果仔细定向、刚性 可以开发配体。 待研究的配体包括 氨基羧酸盐、邻苯二酚酰胺、邻苯二酚酚和 酰胺化物。 所得化合物的特征在于： 晶体结构分析，振动光谱， 电化学和溶液热力学研究。 两 配体的特异性和络合能力将是 测试. %%% 该项目的目标是开发有效和有选择性的 用于清除金属氧代阳离子的试剂。 一种新的方法 涉及氢原子在络合物上的定位 试剂以这样的方式结合到与之相关的氧代基团， 金属将受到考验。 这项研究对以下方面有启示： 离职方法，包括联合国 镧系元素和锕系元素家族， 浪费

This award provides continuing support for the study of selective binding of oxo metal cations by Dr. Kenneth N. Raymond of the Department of Chemistry, University of California, Berkeley. Shape selective ligands for cations such as osmyl and vanadyl will be developed. These ligands will be designed to stabilize the high oxidation state metal center through normal coordinate binding, while at the same time incorporating hydrogen bond donors for interaction with the oxo cation. Preliminary results show that the hydrogen bonding interaction can be significant if carefully oriented, rigid ligands can be developed. Ligands to be investigated include aminocarboxylates, catechol amides, catechol phenols and amidates. The resulting compounds will be characterized by crystal structure analysis, vibrational spectroscopy, electrochemistry, and solution thermodynamics studies. Both the specificity and complexing ability of the ligands will be tested. %%% The goal of this project is to develop effective and selective agents for scavenging metal oxo cations. A new approach involving the positioning of hydrogen atoms on the complexing agent in such a way as to bind to the oxo group associated with the metal will be tried. The research has implications for separation methodology, including that for members of the lanthanide and actinide families which are found in radioactive waste.