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Visualization and Comprehension of Electronic and Topographic Contrasts on Cooperatively Switched Diarylethene-Bridged Ditopic Ligand
Diarylethene is a prototypical molecular switch that can be reversibly photoisomerized between its open and closed forms. Ligands bpy-DAE-bpy, consisting of a phenyl-diarylethene-phenyl (DAE) central core and bipyridine (bpy) terminal substituents, are able to self-organize. They are investigated by...
Autores principales: | , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9029802/ https://www.ncbi.nlm.nih.gov/pubmed/35458026 http://dx.doi.org/10.3390/nano12081318 |
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author | Hnid, Imen Guan, Lihao Chatir, Elarbi Cobo, Saioa Lafolet, Frédéric Maurel, François Lacroix, Jean-Christophe Sun, Xiaonan |
author_facet | Hnid, Imen Guan, Lihao Chatir, Elarbi Cobo, Saioa Lafolet, Frédéric Maurel, François Lacroix, Jean-Christophe Sun, Xiaonan |
author_sort | Hnid, Imen |
collection | PubMed |
description | Diarylethene is a prototypical molecular switch that can be reversibly photoisomerized between its open and closed forms. Ligands bpy-DAE-bpy, consisting of a phenyl-diarylethene-phenyl (DAE) central core and bipyridine (bpy) terminal substituents, are able to self-organize. They are investigated by scanning tunneling microscopy at the solid–liquid interface. Upon light irradiation, cooperative photochromic switching of the ligands is recognized down to the submolecular level. The closed isomers show different electron density of states (DOS) contrasts, attributed to the HOMO or LUMO molecular orbitals observed. More importantly, the LUMO images show remarkable differences between the open and closed isomers, attributed to combined topographic and electronic contrasts mainly on the DAE moieties. The electronic contrasts from multiple HOMO or LUMO distributions, combined with topographic distortion of the open or closed DAE, are interpreted by density functional theory (DFT) calculations. |
format | Online Article Text |
id | pubmed-9029802 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-90298022022-04-23 Visualization and Comprehension of Electronic and Topographic Contrasts on Cooperatively Switched Diarylethene-Bridged Ditopic Ligand Hnid, Imen Guan, Lihao Chatir, Elarbi Cobo, Saioa Lafolet, Frédéric Maurel, François Lacroix, Jean-Christophe Sun, Xiaonan Nanomaterials (Basel) Article Diarylethene is a prototypical molecular switch that can be reversibly photoisomerized between its open and closed forms. Ligands bpy-DAE-bpy, consisting of a phenyl-diarylethene-phenyl (DAE) central core and bipyridine (bpy) terminal substituents, are able to self-organize. They are investigated by scanning tunneling microscopy at the solid–liquid interface. Upon light irradiation, cooperative photochromic switching of the ligands is recognized down to the submolecular level. The closed isomers show different electron density of states (DOS) contrasts, attributed to the HOMO or LUMO molecular orbitals observed. More importantly, the LUMO images show remarkable differences between the open and closed isomers, attributed to combined topographic and electronic contrasts mainly on the DAE moieties. The electronic contrasts from multiple HOMO or LUMO distributions, combined with topographic distortion of the open or closed DAE, are interpreted by density functional theory (DFT) calculations. MDPI 2022-04-12 /pmc/articles/PMC9029802/ /pubmed/35458026 http://dx.doi.org/10.3390/nano12081318 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Hnid, Imen Guan, Lihao Chatir, Elarbi Cobo, Saioa Lafolet, Frédéric Maurel, François Lacroix, Jean-Christophe Sun, Xiaonan Visualization and Comprehension of Electronic and Topographic Contrasts on Cooperatively Switched Diarylethene-Bridged Ditopic Ligand |
title | Visualization and Comprehension of Electronic and Topographic Contrasts on Cooperatively Switched Diarylethene-Bridged Ditopic Ligand |
title_full | Visualization and Comprehension of Electronic and Topographic Contrasts on Cooperatively Switched Diarylethene-Bridged Ditopic Ligand |
title_fullStr | Visualization and Comprehension of Electronic and Topographic Contrasts on Cooperatively Switched Diarylethene-Bridged Ditopic Ligand |
title_full_unstemmed | Visualization and Comprehension of Electronic and Topographic Contrasts on Cooperatively Switched Diarylethene-Bridged Ditopic Ligand |
title_short | Visualization and Comprehension of Electronic and Topographic Contrasts on Cooperatively Switched Diarylethene-Bridged Ditopic Ligand |
title_sort | visualization and comprehension of electronic and topographic contrasts on cooperatively switched diarylethene-bridged ditopic ligand |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9029802/ https://www.ncbi.nlm.nih.gov/pubmed/35458026 http://dx.doi.org/10.3390/nano12081318 |
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