Photochemical and Electrochemical Reactions of Organometallic Molecules

有机金属分子的光化学和电化学反应

• 批准号: 8703465
• 负责人: Mark Wrighton
• 金额: --
• 依托单位: Massachusetts Institute of Technology
• 依托单位国家: 美国
• 项目类别: Continuing grant
• 财政年份: 1987
• 资助国家: 美国
• 起止时间: 1987-05-01 至 1993-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8703465&HistoricalAwards=false
• 关键词: Photochemical; Electrochemical; Reactions; Organometallic; Molecules

Molecular species in fluid solution, in rigid matrices, and attached to surfaces are to be considered with the overall objectives and significance being the correlation of electronic structure and reactivity and in establishing the detailed pathway by which light- and electrochemically-induced reactions occur. There are potential applications in electronic switching devices, microelectronics, semiconductors and related electronic materials. Photochemical and electrochemical studies of organometallic molecules in fluid solution, in rigid media, and on surfaces are proposed. The objective of the research is to understand chemical and physical consequences associated with changes in the electron configuration of the metal complex. Additionally, chemical and spectroscopic characterization of photochemically and electrochemically generated intermediates will be carried out in order to better understand mechanisms of photoreactions and redox processes. Specific systems to be investigated include metal-metal bonded complexes to determine factors influencing photosubstitution reactivity and the reactivity of coordinatively unsaturated metal-metal bonded systems. Another class of molecules to be investigated are mononuclear systems to establish aspects of the mechanism of stoichiometric and catalytic reactions. The approach involves using light to generate coordinatively unsaturated species at low temperature followed by warm up experiments to effect thermal reactions. The remaining thrust of the research involves synthesis of redox polymers to illustrate that reactivity of bound organometallic subunits can be tuned by electrochemical means.

流体溶液中的分子种类，刚性基质中的分子种类， 应将表面与总体目标一起考虑， 重要的是电子结构的相关性， 反应性，并建立详细的途径，其中光- 并且发生电化学诱导的反应。存在潜在 在电子开关器件，微电子， 半导体及相关电子材料。 有机金属分子的光化学和电化学研究 提出了在流体溶液中、在刚性介质中和在表面上的方法。 的 研究的目的是了解化学和物理 与电子构型变化相关的后果 金属络合物。 此外，化学和光谱 表征光化学和电化学产生的 中间体将进行，以便更好地了解 光反应和氧化还原过程的机制。 具体制度， 包括金属-金属键合络合物，以确定 影响光取代反应性的因素和 配位不饱和金属-金属键合体系。 另一类 的分子被研究是单核系统建立 化学计量反应和催化反应的机理方面。 这种方法涉及到使用光来协调地产生 低温下的不饱和物种，随后进行升温实验 以实现热反应。 这项研究剩下的重点是 涉及氧化还原聚合物的合成以说明 结合的有机金属亚单元可以通过电化学方法调节。