NSF Young Investigator/Time Domain Study of Chemical Reaction Dynamics in Condensed Media

9357424谢勒在化学部实验物理化学计划的国家科学基金会青年研究员项目中，宾夕法尼亚大学的诺伯特·谢勒将使用时间域光谱技术来研究溶剂在稠密介质和界面上的化学反应动力学中的作用。将开发新的溶剂选择性光学和远红外(FIR)时域技术，在分子水平上阐明液体、超临界流体、玻璃和生物介质中的溶剂参与化学反应。扫描隧道显微镜将与飞秒多脉冲技术相结合，用于对界面上的化学过程进行原子特定检测。通过这项研究计划下进行的实验结果，Scherer将在微观层面上更好地了解分子如何在液体和流体介质以及界面上碰撞、交换能量和进行化学反应。从这些研究中获得的信息和更广阔的视角有可能在原子一级直接观察和控制化学过程。这反过来又对材料的纳米制造和有毒废物的销毁等不同领域产生了影响。***

9357424 Scherer In this National Science Foundation Young Investigator project in the Experimental Physical Chemistry Program of the Chemistry Division, Norbert Scherer of the University of Pennsylvania will use time-domain spectroscopic techniques to study the role of solvents on chemical reaction dynamics in dense media and at interfaces. New solvent-selective optical and far-infrared (FIR) time-domain techniques will be developed to elucidate solvent involvement in chemical reactions on a molecular level in liquid, supercritical fluid, glass, and biological media. Scanning tunneling microscopy will be used in combination with femtosecond multiple-pulse techniques for the atomic specific detection of chemical processes at interfaces. %%% Through the results of experiments conducted under this research program Scherer will obtain a better understanding on a microscopic level of how molecules collide, exchange energy, and undergo chemical reaction in liquid and fluid media and at interfaces. The information and broader perspective obtained from these studies have the potential for directly observing and controlling chemical processes at the atomic level. This in turn has implications in such diverse areas as nanoscale fabrication of materials and destruction of toxic wastes. ***