Ligand substitution dynamics of solvated iron pentacarbonyl measured by ultrafast x-ray absorption spectroscopy

超快 X 射线吸收光谱测量溶剂化五羰基铁的配体取代动力学

• 批准号: 0405599
• 负责人: Christoph Rose-Petruck
• 金额: $ 36.5万
• 依托单位: Brown University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2004
• 资助国家: 美国
• 起止时间: 2004-08-15 至 2008-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0405599&HistoricalAwards=false
• 关键词: Ligand; substitution; dynamics; solvated; iron

In this award, supported by the Experimental Physical Chemistry Program of the Chemistry Division, Prof. Christoph G. Rose-Petruck of Brown University will conduct research studying the dynamics of ligand substitution of iron pentacarbonyl in solution. The dynamics will be primarily studied using ultrafast x-ray absorption spectroscopy based upon tabletop femtosecond x-ray sources. Additional studies will use FTIR spectroscopy and Density Functional theoretical methods to build a complete picture of the bonding in the solvated iron pentacarbonyl and how this changes upon photoexcitation. Ultimate goals of the research include (1) gaining a better understanding of the ligand dynamics in this prototypical saturated, sterically uncrowded metal carbonyl and (2) developing ultrafast x-ray sources for chemical research.The proposed research will have a broader impact in its development of new spectroscopic probes of chemical systems, as well as its training of undergraduate, graduate and postdoctoral researchers in using these new methods.

在这个由化学系实验物理化学项目支持的奖项中，Christoph G.布朗大学的Rose-Petruck将研究溶液中五羰基铁的配体取代动力学。 动力学将主要使用基于桌面飞秒X射线源的超快X射线吸收光谱进行研究。 进一步的研究将使用FTIR光谱和密度泛函理论方法来构建溶剂化五羰基铁中键合的完整图像，以及光激发后的变化。 该研究的最终目标包括：（1）更好地理解这种典型的饱和、空间不拥挤的金属羰基化合物中的配体动力学;（2）开发用于化学研究的超快X射线源。拟议的研究将在其开发化学体系的新光谱探针以及培养本科生方面产生更广泛的影响。研究生和博士后研究人员使用这些新方法。