In Situ Examination of Adsoption by Reflectance Spectroscopy

该提议解决了在氧化物上的S-L界面处的吸附， 在适当的液体存在下，通过红外（IR）和UV- 可见光（UV-Vis）全衰减反射光谱。 将特别强调物种的识别 以及此类界面处存在的条件。 计划在 检查a）吸附物质的反应性如何不同 在界面区域，由于过量的浓度，空间位阻 约束和各向异性极性;以及B） 构象、互变异构、低聚或电离 平衡将影响动力学。

This proposal addresses the adsorption at S-L interface on oxides, in the presence of appropriate liquids, by Infrared (IR) and UV- Visible (UV-Vis) Total Attenuated Reflection spectroscopy. Particular emphasis will be placed on identification of the species and conditions present at such interfaces. It is planned to examine how a) the reactivity of adsorbed species may be different in the interfacial region, due to excess concentration, steric constraints, and anisotropic polarity; and b) how changes in conformation, tautomerization, oligomerization, or ionization equilibria will affect kinetics.