Lattice Dynamics and Bistability of Electronically Labile Complexes

电子不稳定配合物的晶格动力学和双稳定性

• 批准号: 9115286
• 负责人: David Hendrickson
• 金额: $ 34.57万
• 依托单位: University of California-San Diego
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1991
• 资助国家: 美国
• 起止时间: 1991-12-01 至 1995-11-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9115286&HistoricalAwards=false
• 关键词: Lattice; Dynamics; Bistability; Electronically; Labile

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.

在无机、生物无机和有机金属化学项目的支持下，加州大学圣地亚哥分校的David N. Hendrickson博士将进行一项电子不稳定过渡金属配合物的研究。这些系统包括自旋交叉（在以金属为中心的两个自旋态之间）、价互变异构（金属和配体之间的转移）和双核配合物中的价间转移（在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物理无机研究技术，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跳变速率和激发态寿命的因素。这种电子不稳定系统可以为光开关、信息存储设备和其他电子元件提供基础。将研究各种固态过渡金属化合物中电子在轨道（态）之间的运动。这些研究的目标是了解控制电子在状态之间移动速率和高能量（激发态）寿命的结构因素。这种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。