Probing the Electronic Structure of Metal Clusters

在化学系实验物理化学计划的这个项目中，王将研究从超音速团簇光束中激光蒸发制备的各种含金属团簇的物理和化学性质。这项研究将使用王正在开发的光电子能谱仪进行，该光电子能谱仪强调高质量和高能量分辨率，使他能够研究比迄今以高光谱分辨率检测的更大尺寸的含金属团簇和负离子。四种类型的体系将被考察：Be、Mg和Zn原子团簇中的金属/非金属转变，过渡金属原子团簇上的化学吸附原子团簇，双金属原子团簇和面体内富勒烯。包含多达数百个原子的%团簇可以被视为表面和催化剂的微观模型，它们的研究将为宏观系统提供重要的见解。它还将刺激理论模型，人们可以用这些模型来预测不同物种的化学和催化性质。

In this project in the Experimental Physical Chemistry Program in the Chemistry Division, Wang will investigate the physical and chemical properties of various metal-containing clusters prepared by laser evaporation from a supersonic cluster beam. This study will be done using a photoelectron spectrometer which Wang is developing which emphasizes high mass and high energy resolution, allowing him to study larger sized metal-containing clusters and negative ions than have been examined to date with high spectroscopic resolution. Four types of systems will be examined: the metal/nonmetal transition in atomic clusters of Be, Mg, and Zn, chemisorbed clusters on transition metal clusters, bimetallic clusters, and endohedral fullerenes. %%% Clusters containing up to several hundred atoms can be viewed as microscopic models for surfaces and catalysts, and their study will provide major insights into the macroscopic systems. It will also stimulate theoretical models with which one can predict chemical and catalytic properties of different species.