Stereoselective and multiple-bond chemistry on surfaces: new surface reactions

表面立体选择性和多重键化学：新的表面反应

• 批准号: 1510-2007
• 负责人: McBreen, Peter
• 金额: $ 7.32万
• 依托单位: Université Laval
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2011
• 资助国家: 加拿大
• 起止时间: 2011-01-01 至 2012-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=473487
• 关键词: Stereoselective; multiple; bond; chemistry; surfaces

This research effort is based on the study of chemical reactions that take place on catalyst surfaces. These processes only take place rapidly when the reactant molecules encounter each other on custom-made catalyst surfaces. The Chinese characters for 'catalyst' can also be used for 'mariage broker'. Our research is aimed at understanding how the catalyst guides and activates the reactants-one couple at a time- towards a happy union. The guiding forces can range from the brutal to the most subtle; the catalyst may need to split the reactants into fragments before the reaction occurs, or it may simply need to induce reaction on one specific face of a molecule as in a chiral reaction. We use a combination of surface science research tools to interrogate the forces that govern the reactivity of single molecular layers in contact with a catalyst surface. The projects are centered on two families of reactions, olefin and alkyne metathesis and chiral catalysis. The molecular details gleaned from these studies are of primary importance to progress in many areas other than catalysis. This is because solid surfaces are used as literally the foundation of many modern technologies such as sensing and nanodevices. The single-layer chemical forces governing cataytic activity also govern the quality of function of such devices.

这项研究工作基于对催化剂表面发生的化学反应的研究。只有当反应物分子在定制的催化剂表面上相遇时，这些过程才会快速发生。汉字“催化剂”也可用于“婚姻掮客”。我们的研究旨在了解催化剂如何引导和激活反应物（一次一对）实现幸福结合。指导力量的范围可以从残酷的到最微妙的。催化剂可能需要在反应发生之前将反应物分裂成碎片，或者可能只需要在分子的一个特定面上引发反应，如手性反应一样。我们使用表面科学研究工具的组合来探究控制与催化剂表面接触的单分子层的反应性的力。这些项目集中在两个反应系列：烯烃和炔烃复分解以及手性催化。从这些研究中收集到的分子细节对于催化以外的许多领域的进展至关重要。这是因为固体表面实际上被用作许多现代技术（例如传感和纳米设备）的基础。控制催化活性的单层化学力也控制此类装置的功能质量。