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Hnid I, Guan L, Chatir E, Cobo S, Lafolet F, Maurel F, Lacroix JC, Sun X. Visualization and Comprehension of Electronic and Topographic Contrasts on Cooperatively Switched Diarylethene-Bridged Ditopic Ligand. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:1318. [PMID: 35458026 PMCID: PMC9029802 DOI: 10.3390/nano12081318] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Revised: 04/01/2022] [Accepted: 04/01/2022] [Indexed: 12/22/2022]
Abstract
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.
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Affiliation(s)
- Imen Hnid
- Department of Chemistry, Université de Paris, ITODYS, CNRS, F-75006 Paris, France; (I.H.); (L.G.); (F.L.); (F.M.)
| | - Lihao Guan
- Department of Chemistry, Université de Paris, ITODYS, CNRS, F-75006 Paris, France; (I.H.); (L.G.); (F.L.); (F.M.)
| | - Elarbi Chatir
- Department of Chemistry, Université Grenoble Alpes, DCM-UMR 5250, F-38000 Grenoble, France; (E.C.); (S.C.)
| | - Saioa Cobo
- Department of Chemistry, Université Grenoble Alpes, DCM-UMR 5250, F-38000 Grenoble, France; (E.C.); (S.C.)
| | - Frédéric Lafolet
- Department of Chemistry, Université de Paris, ITODYS, CNRS, F-75006 Paris, France; (I.H.); (L.G.); (F.L.); (F.M.)
| | - François Maurel
- Department of Chemistry, Université de Paris, ITODYS, CNRS, F-75006 Paris, France; (I.H.); (L.G.); (F.L.); (F.M.)
| | - Jean-Christophe Lacroix
- Department of Chemistry, Université de Paris, ITODYS, CNRS, F-75006 Paris, France; (I.H.); (L.G.); (F.L.); (F.M.)
| | - Xiaonan Sun
- Department of Chemistry, Université de Paris, ITODYS, CNRS, F-75006 Paris, France; (I.H.); (L.G.); (F.L.); (F.M.)
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2
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Shu X, Fan Y, Li S, Jin Y, Xia C, Huang C. Anion binding and fluoride ion induced conformational changes in bisurea receptors. NEW J CHEM 2020. [DOI: 10.1039/c9nj05785d] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Two types of bisurea receptors, containing either 2,6-substituted phenyl or 2,6-substituted pyridine, are prepared, and their anion binding properties are investigated.
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Affiliation(s)
- Xi Shu
- College of Chemistry
- Sichuan University
- Chengdu 610064
- P. R. China
| | - Yu Fan
- College of Chemistry
- Sichuan University
- Chengdu 610064
- P. R. China
| | - Shoujian Li
- College of Chemistry
- Sichuan University
- Chengdu 610064
- P. R. China
| | - Yongdong Jin
- College of Chemistry
- Sichuan University
- Chengdu 610064
- P. R. China
| | - Chuanqin Xia
- College of Chemistry
- Sichuan University
- Chengdu 610064
- P. R. China
| | - Chao Huang
- College of Chemistry
- Sichuan University
- Chengdu 610064
- P. R. China
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3
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Imen H, Xiaonan S, Denis F, Frédéric L, Jean-Christophe L. Multi-functional switches of ditopic ligands with azobenzene central bridges at a molecular scale. NANOSCALE 2019; 11:23042-23048. [PMID: 31774086 DOI: 10.1039/c9nr06350a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Ligands are designed to have ditopic bipyridine terminal groups linked through photochromic azobenzene central units, which exhibit multi-switchable properties by different external stimuli. The molecule can switch between cis-and trans-conformations at their bipyridine terminal groups upon protonation and at their central azobenzene units upon irradiation of photons. As a result, the system shows four different isomeric states: cis-TRANS, trans-TRANS, cis-CIS and trans-CIS. The four conformers are switched and are visualized by scanning tunneling microscopy at the solid-liquid interface, which gives a direct demonstration of the multi-functional switches at a molecular level.
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Affiliation(s)
- Hnid Imen
- Université de Paris, ITODYS, CNRS, UMR 7086, 15 rue J-A de Baïf, F-75013 Paris, France.
| | - Sun Xiaonan
- Université de Paris, ITODYS, CNRS, UMR 7086, 15 rue J-A de Baïf, F-75013 Paris, France.
| | - Frath Denis
- Université de Paris, ITODYS, CNRS, UMR 7086, 15 rue J-A de Baïf, F-75013 Paris, France. and Université Lyon, ENS de Lyon, CNRS UMR 5182, Université Claude Bernard Lyon 1, Laboratoire de Chimie, F69342, Lyon, France
| | - Lafolet Frédéric
- Université de Paris, ITODYS, CNRS, UMR 7086, 15 rue J-A de Baïf, F-75013 Paris, France.
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Peng K, Pei T, Huang N, Yuan L, Liu X, Xia J. Functionalization of poly(bis-thiophene methine)s via facile C-C bulk polymerization and their application as chemosensors for acid detection. ACTA ACUST UNITED AC 2018. [DOI: 10.1002/pola.29047] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Kai Peng
- College of Chemistry and Molecular Science; Wuhan University; Wuhan 430072 China
| | - Tong Pei
- College of Chemistry and Molecular Science; Wuhan University; Wuhan 430072 China
| | - Ni Huang
- College of Chemistry and Molecular Science; Wuhan University; Wuhan 430072 China
| | - Liangjie Yuan
- College of Chemistry and Molecular Science; Wuhan University; Wuhan 430072 China
- Engineering Research Center of Organosilicon Compounds & Materials, Ministry of Education, College of Chemistry and Molecular Science; Wuhan University; Wuhan 430072 China
| | - Xinghai Liu
- School of Printing & Packaging; Wuhan University; Wuhan 430072 China
| | - Jiangbin Xia
- College of Chemistry and Molecular Science; Wuhan University; Wuhan 430072 China
- Engineering Research Center of Organosilicon Compounds & Materials, Ministry of Education, College of Chemistry and Molecular Science; Wuhan University; Wuhan 430072 China
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5
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Wu Y, Li J, Zha B, Miao X, Ying L, Deng W. Intermolecular H···O═C bonds induced 2D self-assembly of thiophene based diketopyrrolopyrrole derivative. SURF INTERFACE ANAL 2017. [DOI: 10.1002/sia.6216] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Yican Wu
- School of Materials Science and Engineering; South China University of Technology; Guangzhou 510640 China
| | - Jinxing Li
- School of Materials Science and Engineering; South China University of Technology; Guangzhou 510640 China
| | - Bao Zha
- School of Materials Science and Engineering; South China University of Technology; Guangzhou 510640 China
| | - Xinrui Miao
- School of Materials Science and Engineering; South China University of Technology; Guangzhou 510640 China
| | - Lei Ying
- School of Materials Science and Engineering; South China University of Technology; Guangzhou 510640 China
| | - Wenli Deng
- School of Materials Science and Engineering; South China University of Technology; Guangzhou 510640 China
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Ouchi H, Lin X, Kizaki T, Prabhu DD, Silly F, Kajitani T, Fukushima T, Nakayama KI, Yagai S. Hydrogen-bonded oligothiophene rosettes with a benzodithiophene terminal unit: self-assembly and application to bulk heterojunction solar cells. Chem Commun (Camb) 2016; 52:7874-7. [DOI: 10.1039/c6cc03430f] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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7
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Phukan N, Baruah JB. Solvent and anion facilitated conformational changes in benzylamine substituted thiazolamine. NEW J CHEM 2016. [DOI: 10.1039/c6nj00154h] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Solvent and anion guided conformational adjustments in the syn–anti–syn form of N,N′-(1,4-phenylene-bis(methylene))-bis(5-methylthiazol-2-amine) and the utility of nitrate ions in stabilizing the anti–anti–anti form are established.
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Affiliation(s)
- Nithi Phukan
- Department of Chemistry
- Indian Institute of Technology Guwahati
- Guwahati 781 039
- India
| | - Jubaraj B. Baruah
- Department of Chemistry
- Indian Institute of Technology Guwahati
- Guwahati 781 039
- India
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