New Redox-Dependent Binding Systems for Supramolecular Applications

在这个由化学系大分子、超分子和纳米化学项目资助的项目中，Diane K.圣地亚哥州立大学的史密斯开发了通过电子转移控制超分子结构的新方法。 第一组项目建立在以前的工作与两个氢键系统，探索不同的手段来创建氧化还原依赖于现有的三个和四个氢键的同源和异源二聚体。 第二组项目解决了开发在水溶液中工作的强有力的、选择性的、开/关氧化还原依赖的结合系统的需要。 一个全新的方法的基础上使用的自由基π-二聚化将进行探索。超分子化学的许多先进应用将需要一些手段来控制结构使用外部信号。 电子转移是一种特别有吸引力的方法，因为它在超分子组装的纳米世界和传统电子学的微观领域之间提供了一个天然的管道。 这项研究开辟的电子转移信号的新可能性可能会影响许多未来技术，包括分子电子学，智能材料和分子机器。 更直接的是，它将为多样化的本科生和研究生群体提供优质的教育和培训，其中许多人来自科学领域代表性不足的群体。

In this project funded by the Macromolecular, Supramolecular and Nanochemistry Program of the Chemistry Division, Diane K. Smith of San Diego State University develops new methods to control supramolecular structure through electron transfer. The first set of projects builds upon previous work with two hydrogen-bond systems by exploring different means to create redox-dependence in existing three and four hydrogen-bond homo- and heterodimers. The second set of projects addresses the need to develop strong, selective, on/off redox-dependent binding systems that work in aqueous solution. A completely new approach based on the use of radical pi-dimerizations will be explored. Many advanced applications of supramolecular chemistry will require some means to control structure using an external signal. Electron transfer is a particularly attractive approach because it provides a natural conduit between the nanoscopic world of supramolecular assemblies and the microscopic realm of conventional electronics. The new possibilities for electron transfer signaling opened up by this research may impact a number of future technologies, including molecular electronics, smart materials, and molecular machines. More immediately, it will provide excellent education and training to a diverse group of undergraduate and graduate students, many of whom are from groups under-represented in science.