Analytical and Materials Applications of Redox-dependent Hydrogen Bonding

本研究计划拨款项目涉及氧化还原依赖氢键的化学反应。因此，在材料化学和分析化学中有潜在的应用。这项工作将由圣地亚哥州立大学的黛安·k·史密斯博士和她的学生进行。该项目由分析和表面化学项目和化学司特别项目办公室支持。由于氢键具有明显的静电特性，氧化还原反应产生的电荷变化可以显著影响涉及电荷位置原子的氢键的强度。本研究的目标是确定符合这一描述的供体-受体对，并以多种方式利用这些发现，包括在电极表面进行衍生化反应的新方法。利用电结晶技术在电极表面进行自组装，并控制表面薄膜的液晶膜特性。这些研究的目的包括传感器的发展、超分子结构的控制和氧化还原控制的过滤系统。这项研究寻求通过操纵氢键中一个原子的电荷来控制氢键强度的方法。PI将使用氧化还原反应来完成电荷的变化。通过关注表面的化学反应，有可能开发出性能可以通过氧化态的简单变化而迅速改变的设备和材料。这将在分析化学和材料化学中产生许多可能的应用。

This Research Planning Grant project is concerned with the chemistry of redox dependent hydrogen bonding. As such, there are potential applications in materials chemistry and in analytical chemistry. The work will be carried out by Dr. Diane K. Smith and her students at San Diego State University. The project is supported by the Analytical and Surface Chemistry Program and the Special Projects Office in the Chemistry Division. Since hydrogen bonds have substantial electrostatic character, the change in charge produced by a redox reaction can substantially affect the strength of a hydrogen bond involving an atom at the charge site The goals of this research are to identify donor-acceptor pairs which fit this description, and to exploit the findings in a number of ways including new approaches to derivitization reactions on electrode surfaces, the use of electrocrystallization for self assembly on electrode surfaces, and control of the liquid crystal film character of a surface film. Among the aims of these investigations are sensor development, control of supramolecular structure, and redox controlled filtration systems. This research seeks ways to control the strength of hydrogen bonding by manipulating the charge on one of the atoms involved in the hydrogen bond. The PI will use oxidation-reduction reactions to accomplish the change in charge. By focusing on chemistry at surfaces, it may be possible to develop devices and materials whose properties can be rapidly changed by simple changes in oxidation state. This would lead to a number of possible applications in analytical and materials chemistry.