Abstract Sequential adsorption of 9,10-anthracenedicarboxylic acid (AnDCA) and 1-octanethiol create a multicomponent self-assembled monolayer on Au(111). The presence of AnDCA does not alter the size of close-packed octanethiol domains, but can be found in separate close-packed domains. Successive exposure to 375 nm ultraviolet radiation causes organizational rearrangement of the adsorbed components. Sections of close-packed up-right phase, ϕ , octanethiol with ( 3 × 3 )R30 ∘ packing and a density of 21.6 A 2 /molecule or 4.63 molecules/nm 2 transition to a combination of lower density striped β and ( 5 × 2 ) phase with a density of 35.9 A 2 /molecule or 2.79 molecules/nm 2 . Small domains of AnDCA exhibit a packing density of 0.90 molecules/nm 2 or 110 A 2 /molecule after 20 minutes of UV exposure. After 60 minutes of UV exposure, AnDCA exhibits a similar packing density of 0.91 molecules/nm 2 or 110 A 2 /molecule. Ultimately the domain boundaries become less defined as the β and ( 5 × 2 ) packing dominates the self-assembled monolayer, and adjacent areas of longer-range ordered hydrogen-bonded regions of AnDCA are observed.

中文翻译：

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Au(111) 上依次吸附的 9,10-蒽二羧酸和辛硫醇的紫外线照射引起的单层相变

摘要 9,10-蒽二甲酸 (AnDCA) 和 1-辛硫醇的顺序吸附在 Au(111) 上形成了多组分自组装单层。AnDCA 的存在不会改变密堆积的辛硫醇域的大小，但可以在单独的密堆积域中找到。连续暴露于 375 nm 紫外线辐射会导致吸附组分的组织重排。密堆积的直立相、φ 、具有 ( 3 × 3 )R30 ∘ 堆积和密度为 21.6 A 2 /分子或 4.63 分子/nm 2 的辛硫醇的部分转变为较低密度条纹 β 和 ( 5 × 2) 密度为35.9 A 2 /分子或2.79分子/nm 2 的相。在紫外线照射 20 分钟后，AnDCA 的小域表现出 0.90 分子/nm 2 或 110 A 2 /分子的堆积密度。紫外线照射 60 分钟后，AnDCA 表现出类似的堆积密度，为 0.91 分子/nm 2 或 110 A 2 /分子。最终域边界变得不那么明确，因为 β 和（ 5 × 2 ）堆积在自组装单层中占主导地位，并且观察到 AnDCA 的长程有序氢键区域的相邻区域。