Lattice Dynamics and Bistability of Electronically Labile Complexes

在无机化学、生物无机化学和金属有机化学计划的支持下，加州大学圣地亚哥分校的戴维·N·亨德里克森博士将对电子不稳定的过渡金属络合物进行研究。这些体系包括自旋交叉(以金属为中心的两个自旋态之间)、价互变互变(金属和配位配体之间的转移)和双核络合物中的价间转移(具有不同氧化态的两个金属中心之间的转移)。这些研究将采用广泛的技术用于物理无机研究以及取代基和晶格溶剂运动的分子力学计算，以帮助确定影响电子跃迁速率和激发态寿命的因素。这种电子不稳定的系统可以为光学开关、信息存储设备和其他电子元件提供基础。%电子在各种固态、过渡金属化合物的轨道(态)之间的运动将被研究。这些研究的目的是了解支配电子在状态之间移动的速率和更高能量(激发)态的寿命的结构因素。这样的理解对于这种过渡金属化合物在光开关、信息存储设备和其他电子元件中的技术应用至关重要。

With support from the Inorganic, Bioinorganic and Organometallic Chemistry Program, Dr. David N. Hendrickson of the University of California, San Diego will undertake an investigation of electronically labile transition metal complexes. These include systems that exhibit spin crossover (between two spin states centered on the metal), valence tautomerism (transfer between the metal and a coordinated ligand), and intervalence transfer in binuclear complexes (transfer between two metal centers that have different oxidation states). These studies will employ a broad range of Techniques for physical inorganic studies as well as molecular mechanics calculations of substituent and lattice solvent motions to aid in the determination of the factors affecting the rate of electron hopping and the lifetimes of excited states. Such electronically labile systems could provide the basis for optical switches, information storage devices, and other electronic components. %%% Electron movement between orbitals (states) in a variety of solid state, transition metal compounds will be investigated. The goal of these studies is to understand the structural factors that govern the rates of electron movement between states and the lifetimes of higher energy (excited) states. Such an understanding is critical to technological applications of such transition metal compounds for optical switches, information storage devices, and other electronic components.