RUI: Continued Studies of Condensed-Phase Structural Effects in Complexes of BCl3 and Group IV Lewis Acids

RUI：BCl3 和 IV 族路易斯酸络合物中凝聚相结构效应的持续研究

• 批准号: 1152820
• 负责人: James Phillips
• 金额: $ 22.75万
• 依托单位: University of Wisconsin-Eau Claire
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2012
• 资助国家: 美国
• 起止时间: 2012-07-15 至 2017-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1152820&HistoricalAwards=false
• 关键词: RUI; Continued; Studies; Condensed; Phase

The Chemical Structure, Dynamics and Mechanisms Program of the Division of Chemistry supports the research of Professor James A. Phillips and undergraduate research students at the University of Wisconsin - Eau Claire (UWEC). Phillips and his students will extend their previous experimental and theoretical research on a novel class of Lewis acid-base complexes that undergo significant structural changes between various chemical environments (i.e., when they move from the gas-phase to a solution). Their primary experimental technique is low-temperature infrared spectroscopy, which is applied to two types of sample environments for these complexes: solid thin films comprised of the components, and samples of solid neon or argon seeded with small quantities of them. These measurements will be combined with theoretical calculations to determine gas-phase structural and energetic properties, which provide insight into the extent of the structural changes, as well as the mechanism by which condensed-phase environments manifest them. Beyond fundamental motivations, this work may ultimately lead to a new class of molecular machines or switches, because the complexes sought contain individual bonds that can be affected by a macroscopic, external stimulus. This is the key design feature of all systems that underlie nanotechnology applications. Moreover, this research will take place at a low-cost, accessible, public university with a track record of advancing the careers of low-income and first-generation students, of which a high percentage matriculate to PhD programs. As such, continued funding for this project will enhance opportunities for these students to gain experience with specialized instruments and computational methods that would not occur in a classroom setting, and also bolster their writing and presentation skills.

化学系的化学结构、动力学和机理项目支持威斯康星大学欧克莱尔分校（UWEC）James A. Phillips 教授和本科生的研究。菲利普斯和他的学生将扩展他们之前对一类新型路易斯酸碱配合物的实验和理论研究，这些配合物在各种化学环境之间（即当它们从气相转变为溶液时）会经历显着的结构变化。他们的主要实验技术是低温红外光谱，适用于这些复合物的两种类型的样品环境：由这些成分组成的固体薄膜，以及含有少量这些成分的固体氖气或氩气样品。这些测量结果将与理论计算相结合，以确定气相结构和能量特性，从而深入了解结构变化的程度以及凝聚相环境表现这些变化的机制。除了基本动机之外，这项工作最终可能会带来一类新型分子机器或开关，因为所寻求的复合物包含可能受到宏观外部刺激影响的单个键。这是纳米技术应用基础的所有系统的关键设计特征。此外，这项研究将在一所低成本、交通便利的公立大学进行，该大学在促进低收入和第一代学生的职业生涯方面有着良好的记录，其中很大一部分人被录取为博士课程。因此，对该项目的持续资助将增加这些学生获得课堂环境中无法获得的专业仪器和计算方法经验的机会，并增强他们的写作和演示技能。