Jenniches Anne-S, Bahr Joshua, Püschner Daniel, Keller Tristan J, Hütgens Sebastian, Gratzfeld Kristin, Spahlholz Frank, Eslam Alexander, Lützen Arne
Kekulé-Institut für Organische Chemie und Biochemie, Rheinische Friedrich-Wilhelms-Universität Bonn, Gerhard-Domagk-Straße 1, 53121 Bonn, Germany.
Langmuir. 2022 May 31;38(21):6602-6611. doi: 10.1021/acs.langmuir.2c00462. Epub 2022 May 18.
A series of benzoic and terephthalic acid derivatives and their corresponding ethyl esters have been synthesized. These are decorated with dendritic units carrying alkoxy chains that differ in the number of alkoxy groups and/or their substitution pattern. These molecules were deposited from solution on highly oriented pyrolytic graphite, and the resulting supramolecular surface patterns have been studied by scanning tunneling microscopy at the solid/liquid interface. Thus, we were able to perform a systematic study on the influence of orthogonal functional groups governing the supramolecular assembly, that is, the alkoxy chains of dendritic units and the carboxylic acid (ester) functions, on the intermolecular interactions, that is, interactions and hydrogen bonding between the adsorbed species that drive the pattern formation.
已经合成了一系列苯甲酸和对苯二甲酸衍生物及其相应的乙酯。这些化合物带有树枝状单元，树枝状单元上连接的烷氧基链在烷氧基数量和/或取代模式上有所不同。这些分子从溶液中沉积在高度取向的热解石墨上，通过扫描隧道显微镜在固/液界面研究了由此产生的超分子表面图案。因此，我们能够系统地研究正交官能团对超分子组装的影响，即树枝状单元的烷氧基链和羧酸（酯）官能团对分子间相互作用的影响，也就是吸附物种之间驱动图案形成的相互作用和氢键。
