Photochemistry and Electrochemistry of Surface-Confined Organometallic Compounds

表面限制有机金属化合物的光化学和电化学

• 批准号: 9217695
• 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: 1993
• 资助国家: 美国
• 起止时间: 1993-01-15 至 1996-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9217695&HistoricalAwards=false
• 关键词: Photochemistry; Electrochemistry; Surface; Confined; Organometallic

This award in the Inorganic, Bioinorganic, and Organometallic Program provides continued support for the research program of Dr. Mark S. Wrighton of the Chemistry Department, Massachusetts Institute of Technology. This investigation is concerned with the photochemistry and electrochemistry of organometallic molecules attached to surfaces. Four studies will be pursued: (1) the rate and stability of attachment of various functional groups to metal surfaces; (2) the photochemistry of surface-confined organometallic molecules; (3) the chemistry of metal complexes with redox-active pendant groups that can be used to "tune" the reactivity of the metal center; and (4) synthesis and characterization of metal complexes which show reversible electrochemical response and can be attached to metal surfaces. In study (1), particular attention will be paid to platinum, gold, and indium/tin oxide surfaces which are useful as microelectrodes. Manganese carbonyl compounds which are photosensitive and can exchange multiple CO groups will be used in study (2), as will some ruthenium ammine and ferrocyanide complexes. %%% Dr. Wrighton will investigate the interaction of organometallic compounds with metal surfaces. By varying the metal and the groups attached to it in these complexes, electronic and photochemical characteristics can be manipulated. This research is relevant to many areas of surface chemistry, such as the functionalization of electrodes and microelectrodes for energy conversion and sensors, or the synthesis, adhesion, and wetting of interfaces.

这个无机、生物无机和有机金属项目的奖项为麻省理工学院化学系的Mark S. Wrighton博士的研究项目提供了持续的支持。本研究涉及附着在表面的有机金属分子的光化学和电化学。将进行以下四个方面的研究：(1)各种官能团在金属表面的附着速率和稳定性；(2)表面受限有机金属分子的光化学；(3)具有氧化还原活性的悬垂基团的金属配合物的化学性质，可以用来“调节”金属中心的反应性；(4)具有可逆电化学反应并能附着于金属表面的金属配合物的合成与表征。在研究(1)中，将特别关注可用作微电极的铂、金和铟/锡氧化物表面。锰羰基化合物是光敏的，可以交换多个CO基团，将用于研究(2)，以及一些钌胺和亚铁氰化物配合物。赖特顿博士将研究有机金属化合物与金属表面的相互作用。通过改变这些配合物中的金属和与之相连的基团，可以控制电子和光化学特性。这项研究涉及表面化学的许多领域，如用于能量转换和传感器的电极和微电极的功能化，或界面的合成、粘附和润湿。