Surface-Induced Selection During In Situ Photoswitching at the Solid/Liquid Interface

被引：44
作者：
Bonacchi, Sara [1 ,2 ]
El Garah, Mohamed [1 ,2 ]
Ciesielski, Artur [1 ,2 ]
Herder, Martin [3 ]
Conti, Simone [2 ,4 ]
Cecchini, Marco [2 ,4 ]
Hecht, Stefan [3 ]
Samori, Paolo [1 ,2 ]
机构：
[1] Univ Strasbourg, Nanochem Lab, ISIS & IcFRC, F-67000 Strasbourg, France
[2] CNRS, F-67000 Strasbourg, France
[3] Humboldt Univ, Dept Chem, D-12489 Berlin, Germany
[4] Univ Strasbourg, Lab Mol Funct & Design, ISIS & IcFRC, F-67000 Strasbourg, France
来源：
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2015年 / 54卷 / 16期
关键词：
diarylethene; insitu photoswitching; interfaces; scanning tunneling microscopy; self-assembly; COVALENT ORGANIC FRAMEWORKS; SOLID-LIQUID INTERFACE; DIARYLETHENE; MOLECULES; DERIVATIVES;
D O I：
10.1002/anie.201412215
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Here we report for the first time a submolecularly resolved scanning tunneling microscopy (STM) study at the solid/liquid interface of the insitu reversible interconversion between two isomers of a diarylethene photoswitch, that is, open and closed form, self-assembled on a graphite surface. Prolonged irradiation with UV light led to the insitu irreversible formation of another isomer as by-product of the reaction, which due to its preferential physisorption accumulates at the surface. By making use of a simple yet powerful thermodynamic model we provide a quantitative description for the observed surface-induced selection of one isomeric form.
引用
收藏
页码：4865 / 4869
页数：5
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