Institut für Angewandte Physik and Zentrum für Materialforschung, Justus-Liebig-Universität Giessen, Heinrich-Buff-Ring 16, D-35392, Giessen, Germany.
Fachbereich Chemie, Philipps-Universität, Marburg, Hans-Meerwein-Straße 4, D-35032, Germany.
Chemphyschem. 2021 Feb 16;22(4):404-409. doi: 10.1002/cphc.202000870. Epub 2021 Jan 21.
The reaction of methyl enol ether functionalized cyclooctyne on the silicon (001) surface was investigated by means of X-ray photoelectron spectroscopy (XPS) and density functional theory (DFT). Three different groups of final states were identified; all of them bind on Si(001) via the strained triple bond of cyclooctyne but they differ in the configuration of the methyl enol ether group. The majority of molecules adsorbs without additional reaction of the enol ether group; the relative contribution of this configuration to the total coverage depends on substrate temperature and coverage. Further configurations include enol ether groups which reacted on the silicon surface either via ether cleavage or enol ether groups which transformed on the surface into a carbonyl group.
通过 X 射线光电子能谱（XPS）和密度泛函理论（DFT）研究了甲叉基环辛炔在硅（001）表面的反应。鉴定出三种不同的最终状态组；它们都通过环辛炔的应变三键结合在 Si(001)上，但甲基烯醇醚基团的构型不同。大多数分子在没有额外反应的情况下吸附；这种构型对总覆盖率的相对贡献取决于衬底温度和覆盖率。进一步的构型包括在硅表面通过醚裂解反应的烯醇醚基团，或者在表面转化为羰基的烯醇醚基团。
