Photochemistry and Electrochemistry of Surface-Confined Organometallic Compounds

该奖项授予无机物、生物无机物和有机金属项目，为麻省理工学院化学系的Mark S.Wright ton博士的研究项目提供持续支持。这项研究涉及附着在表面的有机金属分子的光化学和电化学。将进行四个研究：(1)各种官能团在金属表面的附着速度和稳定性；(2)表面受限的有机金属分子的光化学；(3)具有氧化还原活性侧基的金属络合物的化学，可用于“调节”金属中心的反应性；(4)具有可逆电化学反应并可附着于金属表面的金属络合物的合成与表征。在研究(1)中，将特别注意用作微电极的铂、金和铟/锡氧化物表面。研究(2)中将使用具有光敏性且可交换多个CO基团的锰羰基化合物，以及一些铀胺和亚铁氰化物的配合物。莱顿博士将研究金属有机化合物与金属表面的相互作用。通过改变这些络合物中的金属和附着在它上的基团，可以操纵电子和光化学特性。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、粘合和润湿。

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.