Magnetic Molecules, Ions, and Clusters

在这个实验物理化学项目中，佛罗里达大学的韦尔特纳教授将研究矩阵隔离星系团。将在强磁场中使用电子自旋共振、电子核双共振和远红外光谱进行测量。从这些研究中获得的信息包括结构、基态对称性和多重性、低激发电子态的能量、零场分裂、自旋密度以及其他电子和磁性性质。要研究的物种包括IIIA族元素、稀土金属分子及其氧化物和氢化物、过渡金属分子及其氧化物和氢化物。从这些研究中获得的信息将允许与理论进行有价值的比较，并在催化和半导体领域有应用。韦尔特纳教授将在低温下捕获微小的金属颗粒，并确定它们的结构以及电子和磁性。这些金属团簇根据大小和使用的特定金属表现出很大的不同的反应性和电学特性。这项研究的信息将有助于理解催化剂的行为，并有助于设计更高效的半导体。

In this project in Experimental Physical Chemistry, Professor Weltner of the University of Florida will study matrix-isolated clusters. Measurements will be made using Electron Spin Resonance, Electron Nuclear Double Resonance, and Far Infrared spectroscopy in high magnetic fields. Information to be obtained from these studies includes structures, ground state symmetry and multiplicity, energies of low lying excited electronic states, zero-field splittings, spin densities, and other electronic and magnetic properties. Species to be studied include the Group IIIA elements, Rare-Earth metal molecules and their oxides and hydrides, and Transition Metal molecules and their oxides and hydrides. The information obtained from these studies will allow valuable comparisons with theory, and has applications in the areas of catalysis and semiconductors. Professor Weltner will trap small metal particles at low temperature and determine their structures and electronic and magnetic properties. These metal clusters exhibit widely varying reactivities and electrical characteristics depending on size and the particular metal used. The information from this study will be useful in understanding how catalysts behave, and in designing more efficient semiconductors.