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Yamada S, Konno T. Development of Donor-π-Acceptor-Type Fluorinated Tolanes as Compact Condensed Phase Luminophores and Applications in Photoluminescent Liquid-Crystalline Molecules. CHEM REC 2023; 23:e202300094. [PMID: 37098883 DOI: 10.1002/tcr.202300094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Revised: 04/13/2023] [Indexed: 04/27/2023]
Abstract
Fluorinated tolanes, produced by introducing fluorine atoms into one of the aromatic rings of tolane, emitted almost no fluorescence in a solution state, but the fluorescence intensity increased dramatically in the crystalline state because of intermolecular H⋅⋅⋅F hydrogen bonds. The photoluminescent (PL) colors depend on the molecular orbitals, dipole moments, and molecular aggregated structures can be varied by controlling terminal substituents along the major molecular axis. The introduction of a long alkoxy or semifluoroalkoxy unit as a flexible chain into the terminal positions along the major molecular axis induced the formation of a liquid-crystalline (LC) phase; fluorinated tolanes act both as luminophores and as mesogens, leading to the molecular design of new photoluminescent LC molecules (PLLCs). The results also indicated that a fluorinated tolane dimer, which consists of two fluorinated tolanes linked by a flexible alkylene spacer, also becomes a novel PLLC.
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Affiliation(s)
- Shigeyuki Yamada
- Faculty of Molecular Chemistry and Engineering, Kyoto Institute of Technology, Matsugasaki, Sakyo-ku, Kyoto, 606-8585, Japan
| | - Tsutomu Konno
- Faculty of Molecular Chemistry and Engineering, Kyoto Institute of Technology, Matsugasaki, Sakyo-ku, Kyoto, 606-8585, Japan
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2
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Biesen L, Woschko D, Janiak C, Müller TJJ. Solid-State Emission and Aggregate Emission of Aroyl- S,N-Ketene Acetals Are Controlled and Tuned by Their Substitution Pattern. Chemistry 2022; 28:e202202579. [PMID: 36111794 PMCID: PMC9828079 DOI: 10.1002/chem.202202579] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Indexed: 01/12/2023]
Abstract
Aroyl-S,N-ketene acetals are a novel highly diverse class of aggregation-induced emission fluorogens (AIEgens) with a plethora of interesting properties. An expanded compound library of more than 110 dyes set the stage for the first qualitative control and tuneability of all aspects of their photophysical properties. The interplay of substituents not only allows tuning and prediction of the emission color, but also of the intensity, and quantum yields both in solids and in the aggregated state; these can be rationalized by scrutinizing intermolecular interactions in the crystalline solid state.
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Affiliation(s)
- Lukas Biesen
- Institut für Organische Chemie und Makromolekulare ChemieHeinrich-Heine-Universität DüsseldorfUniversitätsstraße 140225DüsseldorfGermany
| | - Dennis Woschko
- Institut für Anorganische Chemie und StrukturchemieHeinrich-Heine-Universität DüsseldorfUniversitätsstraße 140225DüsseldorfGermany
| | - Christoph Janiak
- Institut für Anorganische Chemie und StrukturchemieHeinrich-Heine-Universität DüsseldorfUniversitätsstraße 140225DüsseldorfGermany
| | - Thomas J. J. Müller
- Institut für Organische Chemie und Makromolekulare ChemieHeinrich-Heine-Universität DüsseldorfUniversitätsstraße 140225DüsseldorfGermany
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3
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Yao P, Qiao W, Wang Y, Peng H, Xie X, Li Z. Deep-Red Emissive Squaraine-AIEgen in Elastomer Enabling High Contrast and Fast Thermoresponse for Anti-Counterfeiting and Temperature Sensing. Chemistry 2022; 28:e202200725. [PMID: 35294078 DOI: 10.1002/chem.202200725] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Indexed: 12/14/2022]
Abstract
Two challenges remain for organic thermoresponsive materials; one is to develop high-performance red-emissive thermoresponsive materials, while another is to simultaneously achieve high contrast ratio (CR), fast and reversible thermoresponse in a single element. Herein, we not only develop a new deep-red emissive squaraine-based AIEgen (TPE-SQ12) based on a pyrylium end group, which is suitable for fabricating high-performance thermoresponsive materials, but also show an effective approach to improve both CR (∼ten times increase) and response time (less than 3 seconds), that is, molecularly dispersing AIEgen into an elastomer, attributed to the significantly expanded free volume of elastomer upon increasing the temperature that can activate the AIEgen intramolecular movements more pronouncedly. Double encryption and temperature mapping systems have been separately established by using our designed elastomer/TPE-SQ12 film, showing the great potential for anti-counterfeiting and temperature sensing. Finally, white emission is further achieved by co-doping TPE-SQ12 with cyan dye into elastomer, which enables fluorescent thermochromism for improving the temperature mapping ability.
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Affiliation(s)
- Peigen Yao
- Key Laboratory for Material Chemistry of Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, P. R. China
| | - Weiguo Qiao
- Key Laboratory for Material Chemistry of Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, P. R. China
| | - Yixuan Wang
- Key Laboratory for Material Chemistry of Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, P. R. China
| | - Haiyan Peng
- Key Laboratory for Material Chemistry of Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, P. R. China.,National Anti-Counterfeit Engineering Research Center, Huazhong University of Science and Technology, Wuhan, 430074, P. R. China
| | - Xiaolin Xie
- Key Laboratory for Material Chemistry of Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, P. R. China.,National Anti-Counterfeit Engineering Research Center, Huazhong University of Science and Technology, Wuhan, 430074, P. R. China
| | - Zhong'an Li
- Key Laboratory for Material Chemistry of Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, P. R. China
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Hino Y, Hayashi S. Thermotriggered Domino-like Single-Crystal-to-Single-Crystal Phase Transition from Face-to-Edge to Face-to-Face Packing of Anthracenes. Chemistry 2021; 27:17595-17600. [PMID: 34636094 DOI: 10.1002/chem.202103165] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Indexed: 12/31/2022]
Abstract
Stimuli-triggered crystal-to-crystal and single-crystal-to-single-crystal (SCSC) transformations have received significant attention in the scientific community. To visualize such phenomenon, controlling the optical properties and the thermodynamic stability of the molecular crystals is a very important research subject. In this report, the selective growth of photoluminescent (PL) 1,8-bisphenylanthracene polymorphic (cI and cII) and 1,2-dichloroethane-inclusion crystals (iC) under various optimized conditions is described. These crystals exhibited unique mechano- and thermoresponsive disordering, crystal-to-crystal phase transition, and SCSC phase transition. In particular, rapid thermostimulus SCSC occurred from blue-PL cI into greenish-blue-PL cII. Interestingly, the SCSC phase transition of cI into cII was triggered by thermal stimuli and propagated spontaneously. Thermotriggered domino-like SCSC phase transition was observed on a fully visible timescale (ca. 125 μm min-1 ).
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Affiliation(s)
- Yuto Hino
- School of Environmental Science and Engineering, Kochi University of Technology, 185 Tosayamada Miyanokuchi, Kami, Kochi, 782-8502, Japan
| | - Shotaro Hayashi
- School of Environmental Science and Engineering, Kochi University of Technology, 185 Tosayamada Miyanokuchi, Kami, Kochi, 782-8502, Japan.,Research Center for Molecular Design, Kochi University of Technology, 185 Tosayamada Miyanokuchi, Kami, Kochi, 782-8502, Japan
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Wong JM, Zhang R, Xie P, Yang L, Zhang M, Zhou R, Wang R, Shen Y, Yang B, Wang H, Ding Z. Revealing Crystallization‐Induced Blue‐Shift Emission of a Di‐Boron Complex by Enhanced Photoluminescence and Electrochemiluminescence. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202007588] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Jonathan M. Wong
- Key Laboratory of Optoelectronic Chemical Materials and Devices of Ministry of Education School of Chemical and Environmental Engineering Jianghan University Wuhan Hubei 430056 China
- Department of Chemistry and Centre for Advanced Materials and Biomaterials The University of Western Ontario 1151 Richmond Street London Ontario N6A 5B7 Canada
| | - Ruizhong Zhang
- Key Laboratory of Optoelectronic Chemical Materials and Devices of Ministry of Education School of Chemical and Environmental Engineering Jianghan University Wuhan Hubei 430056 China
- Department of Chemistry and Centre for Advanced Materials and Biomaterials The University of Western Ontario 1151 Richmond Street London Ontario N6A 5B7 Canada
| | - Peidong Xie
- Key Laboratory of Optoelectronic Chemical Materials and Devices of Ministry of Education School of Chemical and Environmental Engineering Jianghan University Wuhan Hubei 430056 China
| | - Liuqing Yang
- Department of Chemistry and Centre for Advanced Materials and Biomaterials The University of Western Ontario 1151 Richmond Street London Ontario N6A 5B7 Canada
| | - Minlin Zhang
- Key Laboratory of Optoelectronic Chemical Materials and Devices of Ministry of Education School of Chemical and Environmental Engineering Jianghan University Wuhan Hubei 430056 China
| | - Ruixue Zhou
- Key Laboratory of Optoelectronic Chemical Materials and Devices of Ministry of Education School of Chemical and Environmental Engineering Jianghan University Wuhan Hubei 430056 China
- Department of Chemistry Xi'an Jiaotong-Liverpool University 111 Ren'an Road, Suzhou Jiangsu 215123 China
| | - Ruiyao Wang
- Department of Chemistry Xi'an Jiaotong-Liverpool University 111 Ren'an Road, Suzhou Jiangsu 215123 China
| | - Yue Shen
- State Key Lab of Supramolecular Structure and Materials Jilin University 2699 Qianjin Avenue Changchun Jilin 130012 China
| | - Bing Yang
- State Key Lab of Supramolecular Structure and Materials Jilin University 2699 Qianjin Avenue Changchun Jilin 130012 China
| | - Hong‐Bo Wang
- Key Laboratory of Optoelectronic Chemical Materials and Devices of Ministry of Education School of Chemical and Environmental Engineering Jianghan University Wuhan Hubei 430056 China
- Department of Chemistry and Centre for Advanced Materials and Biomaterials The University of Western Ontario 1151 Richmond Street London Ontario N6A 5B7 Canada
- Department of Chemistry Xi'an Jiaotong-Liverpool University 111 Ren'an Road, Suzhou Jiangsu 215123 China
| | - Zhifeng Ding
- Key Laboratory of Optoelectronic Chemical Materials and Devices of Ministry of Education School of Chemical and Environmental Engineering Jianghan University Wuhan Hubei 430056 China
- Department of Chemistry and Centre for Advanced Materials and Biomaterials The University of Western Ontario 1151 Richmond Street London Ontario N6A 5B7 Canada
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Revealing Crystallization‐Induced Blue‐Shift Emission of a Di‐Boron Complex by Enhanced Photoluminescence and Electrochemiluminescence. Angew Chem Int Ed Engl 2020; 59:17461-17466. [DOI: 10.1002/anie.202007588] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Revised: 06/15/2020] [Indexed: 12/16/2022]
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