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

被引：45

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

页码：4865 / 4869

页数：5

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