1
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Omura T, Morisako S, Isoda K. Amino acid-appended pyromellitic diimide liquid materials, their photoluminescence, and the thermal response that turns the photoluminescence off. Chem Commun (Camb) 2024; 60:9352-9355. [PMID: 39101276 DOI: 10.1039/d4cc02229g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/06/2024]
Abstract
We report a liquid material based on an L-valine-appended pyromellitic diimide framework. This liquid adopts a room-temperature liquid with Tg at -50 °C and can dissolve naphthalene derivatives to show various photoluminescent colors. Furthermore, the on/off photoluminescence of these solutions can be controlled by heating.
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Affiliation(s)
- Takumi Omura
- Organic Materials Chemistry Group, Sagami Chemical Research Institute, 2743-1 Hayakawa, Ayase, Kanagawa 252-1193, Japan.
- Division of Molecular Sciences, Graduate School of Science, Kitasato University, 1-15-1 Kitasato Minami-ku, Sagamihara, Kanagawa, 252-0373, Japan
| | - Shogo Morisako
- Organic Materials Chemistry Group, Sagami Chemical Research Institute, 2743-1 Hayakawa, Ayase, Kanagawa 252-1193, Japan.
- Division of Molecular Sciences, Graduate School of Science, Kitasato University, 1-15-1 Kitasato Minami-ku, Sagamihara, Kanagawa, 252-0373, Japan
| | - Kyosuke Isoda
- Organic Materials Chemistry Group, Sagami Chemical Research Institute, 2743-1 Hayakawa, Ayase, Kanagawa 252-1193, Japan.
- Division of Molecular Sciences, Graduate School of Science, Kitasato University, 1-15-1 Kitasato Minami-ku, Sagamihara, Kanagawa, 252-0373, Japan
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2
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Order from disorder: Directed assembly of alkyl-π functional molecular liquids. Curr Opin Colloid Interface Sci 2022. [DOI: 10.1016/j.cocis.2022.101641] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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3
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Zhang G, Yu L, Chen J, Dong R, Godbert N, Li H, Hao J. Artificial Light-Harvesting System with White-Light Emission in a Bicontinuous Ionic Medium. J Phys Chem Lett 2022; 13:8999-9006. [PMID: 36149259 DOI: 10.1021/acs.jpclett.2c02314] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Artificial light-harvesting systems (ALHSs), which are closely related to Förster resonance energy transfer (FRET), are among the most attractive scientific topics during the past few decades. Specifically, binary ALHSs that are composed of a fluid donor and acceptor have a simplified composition and high number density of the donor units. However, largely due to the difficulty in obtaining a fluid donor, investigation of these systems is still quite limited, especially for the ionic systems. Herein, we report a new type of binary ALHS using an ionic naphthalimide (NPI) derivative as a donor, which shows greatly improved photoluminescence for its bicontinuous liquid structure. When blending with an acceptor such as rhodamine 6G or trans-4-[4-(dimethylamino)styryl]-methylpyridinium iodide, efficient FRET was confirmed by both experimental results and molecular dynamics simulations, with an energy transfer efficiency up to ∼90%. Tunable color, including white-light emission, was achieved by tuning the acceptor/donor ratio, opening the door for a variety of applications such as light-emitting diodes and photoluminescent inks.
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Affiliation(s)
- Geping Zhang
- Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, China
| | - Longyue Yu
- Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, China
| | - Jingfei Chen
- Laboratory of Biofuels, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, 266061, China
| | - Renhao Dong
- Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, China
| | - Nicolas Godbert
- MAT_INLAB (Laboratorio di Materiali Molecolari Inorganici), Centro di Eccelenza CEMIF.CAL, LASCAMM CR-INSTM della Calabria, Dipartimento di Chimica e Tecnologie Chimiche, Università della Calabria, 87036 Arcavacata di Rende, Cosenza, Italy
| | - Hongguang Li
- Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, China
| | - Jingcheng Hao
- Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, China
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4
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Ikenaga A, Akiyama Y, Ishiyama T, Gon M, Tanaka K, Chujo Y, Isoda K. Stimuli-Responsive Self-Assembly of π-Conjugated Liquids Triggers Circularly Polarized Luminescence. ACS APPLIED MATERIALS & INTERFACES 2021; 13:47127-47133. [PMID: 34581177 DOI: 10.1021/acsami.1c13119] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
We developed novel room-temperature stimuli-responsive N-heteroacene-based liquid materials bearing a chiral alkyl chain. When these liquid materials were exposed to HCl vapor as an external stimulus, a disordered-ordered state change occurred immediately to yield self-assembled solid states from fluidic liquids. The self-assembly mechanism during this state change was evaluated by experimental in situ observations and molecular dynamics simulations over various spatiotemporal scales. These self-assembled structures led to supramolecular chirality through the influence of the chiral alkyl chain. As a result, circularly polarized luminescence (CPL) was triggered in the solid state, which was absent in the precursor liquid, thereby rendering this the first report on a stimuli-responsive CPL on/off liquid material. In addition, the initial state was recovered by exposure to air or upon heating. Moreover, the synergy between the experimental and the theoretical studies opens a new avenue to develop a novel class of stimuli-responsive materials and to discover novel phenomena in such materials.
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Affiliation(s)
- Ayumi Ikenaga
- Division of Advanced Materials Science, Graduate School of Engineering, Kagawa University, 2217-20 Hayashi-cho, Takamatsu, Kagawa 761-0396, Japan
| | - Yuichi Akiyama
- Division of Advanced Materials Science, Graduate School of Engineering, Kagawa University, 2217-20 Hayashi-cho, Takamatsu, Kagawa 761-0396, Japan
| | - Tatsuya Ishiyama
- Department of Applied Chemistry, Graduate School of Science and Engineering, University of Toyama, 3190 Gofuku, Toyama 930-8555, Japan
| | - Masayuki Gon
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Kazuo Tanaka
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Yoshiki Chujo
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Kyosuke Isoda
- Program in Advanced Materials Science, Faculty of Engineering and Design, Kagawa University, 2217-20 Hayashi-cho, Takamatsu, Kagawa 761-0396, Japan
- Health and Medical Research Institute, National Institute of Advanced Industrial Science and Technology, 2217-14 Hayashi-cho, Takamatsu, Kagawa 761-0395, Japan
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5
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Wakchaure VC, Das T, Ravindranathan S, Santhosh Babu S. An excimer to exciplex transition through realization of donor-acceptor interactions in luminescent solvent-free liquids. NANOSCALE 2021; 13:10780-10784. [PMID: 34124717 DOI: 10.1039/d1nr02190g] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Luminescent solvent-free organic liquids are known for their enhanced quantum yield, color tunability, and availability of a matrix for other dopants to generate hybrid luminescent materials with improved features for newer applications. Herein, we report a donor-acceptor based luminescent "exciplex liquid" by utilizing the slightly different electron affinity of the acceptor molecules. A red-shifted broad exciplex emission exhibited by the donor-acceptor pair even at a lower concentration of the acceptor (0.001 equiv.) indicates high efficiency in the solvent-free state. A detailed NMR study revealed weak intermolecular interactions between the donor and acceptor in the solvent-free matrix that stabilizes the exciplex liquid. The failure of structurally similar solid counterparts to form an exciplex confirms the advantage of the available supportive liquid matrix. Besides, the luminescent exciplex liquid is found efficient in sensing application, which is unachievable by either the individual liquids or their solid counterparts. Here, a transition of a donor-acceptor pair from a solid to solvent-free liquid results in a new hybrid liquid that can be an alternative for solid sensor materials.
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Affiliation(s)
- Vivek Chandrakant Wakchaure
- Organic Chemistry Division, National Chemical Laboratory (CSIR-NCL), Dr. Homi Bhabha Road, Pune-411008, India. and Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201 002, India
| | - Tamal Das
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201 002, India and Physical and Materials Chemistry Division, National Chemical Laboratory (CSIR-NCL), Dr. Homi Bhabha Road, Pune-411008, India
| | - Sapna Ravindranathan
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201 002, India and Central NMR Facility, National Chemical Laboratory (CSIR-NCL), Dr. Homi Bhabha Road, Pune-411008, India
| | - Sukumaran Santhosh Babu
- Organic Chemistry Division, National Chemical Laboratory (CSIR-NCL), Dr. Homi Bhabha Road, Pune-411008, India. and Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201 002, India
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6
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Sato Y, Mutoh Y, Morishita S, Tsurumachi N, Isoda K. Stimulus-Responsive Supercooled π-Conjugated Liquid and Its Application in Rewritable Media. J Phys Chem Lett 2021; 12:3014-3018. [PMID: 33733791 DOI: 10.1021/acs.jpclett.1c00247] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Herein, we report a stimulus-responsive supercooled π-conjugated liquid and the possibility of its application in rewritable media. Supercooled liquid 1 showed a dramatic change in its photoluminescent color upon the transformation from liquid 1l (yellow emission) to solid 1s (green emission). These phenomena were revealed by fluorescence spectra as well as lifetime decay profiles.
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Affiliation(s)
- Yuika Sato
- Division in Advanced Materials Science, Graduate School of Engineering, Kagawa University, 2217-20 Hayashi-cho, Takamatsu, Kagawa 761-0396, Japan
| | - Yuichiro Mutoh
- Center for Sustainable Resource Science, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Shuhei Morishita
- Division in Advanced Materials Science, Graduate School of Engineering, Kagawa University, 2217-20 Hayashi-cho, Takamatsu, Kagawa 761-0396, Japan
| | - Noriaki Tsurumachi
- Program in Advanced Materials Science, Faculty of Engineering and Design, Kagawa University, 2217-20 Hayashi-cho, Takamatsu, Kagawa 761-0396, Japan
| | - Kyosuke Isoda
- Program in Advanced Materials Science, Faculty of Engineering and Design, Kagawa University, 2217-20 Hayashi-cho, Takamatsu, Kagawa 761-0396, Japan
- Division in Advanced Materials Science, Graduate School of Engineering, Kagawa University, 2217-20 Hayashi-cho, Takamatsu, Kagawa 761-0396, Japan
- Health Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), 2217-14 Hayashi-cho, Takamatsu, Kagawa 761-0395, Japan
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7
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Isoda K, Orita Y. Stimuli-responsive Behaviors for Room-temperature Fluorescent Liquid Materials based on N-Heteroacenes and their Mixtures in Response to HCl Vapor and their Facile Synthesis. ANAL SCI 2021; 37:469-477. [PMID: 33162419 DOI: 10.2116/analsci.20scp05] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
In this paper, we report on stimuli-responsive behaviors for room temperature fluorescent liquid materials based on N-heteroacene frameworks in response to HCl vapor. These liquid materials as well as their mixtures prepared by varying the combination can provide various emission colors and stimuli-responsive properties in liquid states. Also, we achieved an improvement in total synthetic yield (>40%) by redesigning the molecular structures of liquid materials as compared to previous liquid materials (<10%).
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Affiliation(s)
- Kyosuke Isoda
- Faculty of Engineering and Design, Kagawa University.,Health Research Institute, National Institute of Advanced Industrial Science and Technology (AIST)
| | - Yuya Orita
- Faculty of Engineering and Design, Kagawa University
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8
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Bai X, Sun Y, Jiang Y, Zhao G, Jiang J, Yuan C, Liu M. Circularly Polarized Luminescence from Solvent-Free Chiral Organic π-Liquids. Angew Chem Int Ed Engl 2021; 60:3745-3751. [PMID: 33170551 DOI: 10.1002/anie.202013550] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Revised: 11/04/2020] [Indexed: 12/30/2022]
Abstract
The solvent-free organic π-liquids have been attracting increasing attentions owing to the inherent optoelectronic properties accompanied by the advantages of non-volatility and high processability. Herein, we reported a series of naphthalene derivatives substituted with chiral branched alkyl chains, which are present as liquids (Nap1-3) or solid (Nap4) at room temperature, depending on the substitution positions. Circular dichroism (CD) and circularly polarized luminescence (CPL) were only observed for enantiomeric Nap2 (2,3-substituted) liquid. It is suggested that the chiral aggregation in the π-liquid leads to the CD signal and the chiral excimer resulting in the CPL performance. When achiral anthracene or pyrene was dissolved in Nap2, the π-liquid could serve as chirality and energy transfer media in which both CD and CPL emerged from the achiral anthracene. A CPL dissymmetry factor (|glum |) of anthracene reached to 5.2×10-2 when dissolved in chiral Nap2 liquid, which is nearly two orders of magnitude higher than that of the pure Nap2 π-liquid.
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Affiliation(s)
- Xue Bai
- Key laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing, 100190, China.,Department of Chemistry, School of Science, Tianjin University, Tianjin, 300354, China
| | - Yimeng Sun
- Key laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing, 100190, China
| | - Yuqian Jiang
- Key laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing, 100190, China
| | - Guangjiu Zhao
- Department of Chemistry, School of Science, Tianjin University, Tianjin, 300354, China
| | - Jian Jiang
- Key laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing, 100190, China
| | - Chenhuan Yuan
- National Laboratory for Molecular Science (BNLMS), CAS Laboratory of Colloid, Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Science, Beijing, 100190, China
| | - Minghua Liu
- Key laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing, 100190, China.,National Laboratory for Molecular Science (BNLMS), CAS Laboratory of Colloid, Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Science, Beijing, 100190, China.,University of Chinese Academy of Sciences, Beijing, 100190, China
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9
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Akiyama Y, Mutoh Y, Isoda K. Asymmetric N-heteroacene liquid showing site-selective acid sensing. J Photochem Photobiol A Chem 2021. [DOI: 10.1016/j.jphotochem.2020.113036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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10
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Bai X, Sun Y, Jiang Y, Zhao G, Jiang J, Yuan C, Liu M. Circularly Polarized Luminescence from Solvent‐Free Chiral Organic π‐Liquids. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202013550] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- Xue Bai
- Key laboratory of Nanosystem and Hierarchical Fabrication CAS Center for Excellence in Nanoscience National Center for Nanoscience and Technology Beijing 100190 China
- Department of Chemistry School of Science Tianjin University Tianjin 300354 China
| | - Yimeng Sun
- Key laboratory of Nanosystem and Hierarchical Fabrication CAS Center for Excellence in Nanoscience National Center for Nanoscience and Technology Beijing 100190 China
| | - Yuqian Jiang
- Key laboratory of Nanosystem and Hierarchical Fabrication CAS Center for Excellence in Nanoscience National Center for Nanoscience and Technology Beijing 100190 China
| | - Guangjiu Zhao
- Department of Chemistry School of Science Tianjin University Tianjin 300354 China
| | - Jian Jiang
- Key laboratory of Nanosystem and Hierarchical Fabrication CAS Center for Excellence in Nanoscience National Center for Nanoscience and Technology Beijing 100190 China
| | - Chenhuan Yuan
- National Laboratory for Molecular Science (BNLMS) CAS Laboratory of Colloid, Interface and Chemical Thermodynamics Institute of Chemistry Chinese Academy of Science Beijing 100190 China
| | - Minghua Liu
- Key laboratory of Nanosystem and Hierarchical Fabrication CAS Center for Excellence in Nanoscience National Center for Nanoscience and Technology Beijing 100190 China
- National Laboratory for Molecular Science (BNLMS) CAS Laboratory of Colloid, Interface and Chemical Thermodynamics Institute of Chemistry Chinese Academy of Science Beijing 100190 China
- University of Chinese Academy of Sciences Beijing 100190 China
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11
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Gon M, Wakabayashi J, Nakamura M, Tanaka K, Chujo Y. Preparation of Near‐Infrared Emissive π‐Conjugated Polymer Films Based on Boron‐Fused Azobenzene Complexes with Perpendicularly Protruded Aryl Substituents. Macromol Rapid Commun 2020; 42:e2000566. [DOI: 10.1002/marc.202000566] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Revised: 10/19/2020] [Indexed: 12/12/2022]
Affiliation(s)
- Masayuki Gon
- Department of Polymer Chemistry Graduate School of Engineering Kyoto University Katsura Nishikyo‐ku Kyoto 615‐8510 Japan
| | - Junko Wakabayashi
- Department of Polymer Chemistry Graduate School of Engineering Kyoto University Katsura Nishikyo‐ku Kyoto 615‐8510 Japan
| | - Masashi Nakamura
- Department of Polymer Chemistry Graduate School of Engineering Kyoto University Katsura Nishikyo‐ku Kyoto 615‐8510 Japan
| | - Kazuo Tanaka
- Department of Polymer Chemistry Graduate School of Engineering Kyoto University Katsura Nishikyo‐ku Kyoto 615‐8510 Japan
| | - Yoshiki Chujo
- Department of Polymer Chemistry Graduate School of Engineering Kyoto University Katsura Nishikyo‐ku Kyoto 615‐8510 Japan
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12
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Enozawa H, Ukai S, Ito H, Murata T, Morita Y. Colored Ionic Liquid Based on Stable Polycyclic Anion Salt Showing Halochromism with HCl Vapor. Org Lett 2019; 21:2161-2165. [PMID: 30896176 DOI: 10.1021/acs.orglett.9b00468] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
A sodium salt of a polycyclic trioxotriangulene (TOT) anion with six triethylene glycol chains exhibiting the formation of a colored ionic liquid at room temperature was synthesized. The ionic liquid is air- and water-stable, reflecting thermodynamic stabilization of a charge-delocalized TOT anion. Upon protonation of the TOT anion, the salt shows halochromic behaviors in solution and even in the neat liquid state with HCl vapor. The ionic liquid shows no morphological change with the chromism, presumably as a result of poor intermolecular interactions between π skeletons.
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Affiliation(s)
- Hideo Enozawa
- Department of Applied Chemistry, Faculty of Engineering , Aichi Institute of Technology , Toyota , Aichi 470-0392 , Japan
| | - Shusaku Ukai
- Department of Applied Chemistry, Faculty of Engineering , Aichi Institute of Technology , Toyota , Aichi 470-0392 , Japan
| | - Hiroshi Ito
- Department of Applied Chemistry, Faculty of Engineering , Aichi Institute of Technology , Toyota , Aichi 470-0392 , Japan
| | - Tsuyoshi Murata
- Department of Applied Chemistry, Faculty of Engineering , Aichi Institute of Technology , Toyota , Aichi 470-0392 , Japan
| | - Yasushi Morita
- Department of Applied Chemistry, Faculty of Engineering , Aichi Institute of Technology , Toyota , Aichi 470-0392 , Japan
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13
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Isoda K, Ishiyama T, Mutoh Y, Matsukuma D. Stimuli-Responsive Room-Temperature N-Heteroacene Liquid: In Situ Observation of the Self-Assembling Process and Its Multiple Properties. ACS APPLIED MATERIALS & INTERFACES 2019; 11:12053-12062. [PMID: 30816691 DOI: 10.1021/acsami.8b21695] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
A novel stimuli-responsive room-temperature photoluminescent liquid 1 based on the N-heteroacene framework is developed and analyzed by several experiments such as differential scanning calorimetry, X-ray diffraction, dynamic viscoelasticity measurement, in situ observation by optical and polarized optical microscopes, UV-vis absorption and fluorescence spectroscopy, and by theoretical methods such as ab initio calculation and molecular dynamics (MD) computer simulation techniques. In contrast to stimuli-responsive solid materials reported previously, liquid 1 in response to HCl vapor as a single stimulus can involve dramatically multiple changes in physical properties such as rheological behavior, morphology, as well as photoluminescence. The present ab initio calculation and microsecond-timescale MD simulations reveal that the complexation of 1 and HCl molecules induces a large dipole moment, leading to the formation of stacking structures because of their dipole-dipole interaction. Upon exposure to HCl vapor, in situ microscopic observation of the stimuli-responsive liquid elucidates a self-assembling process involving the formation of the wrinkle structure in a micrometer scale, indicating disorder-order phase transition. Further exposure of 1 to HCl vapor from seconds to hours has an influence on the macroscopic physical properties such as viscosity, viscoelasticity, and photoluminescent colors. The synergy between the experimental and theoretical investigations opens a new strategy to develop a novel class of stimuli-responsive materials showing multiple changes in physical properties.
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Affiliation(s)
- Kyosuke Isoda
- Faculty of Engineering and Design , Kagawa University , 2217-20 Hayashi-cho , Takamatsu , Kagawa 761-0396 , Japan
- Health Research Institute , National Institute of Advanced Industrial Science and Technology (AIST) , 2217-14 Hayashi-cho , Takamatsu , Kagawa 761-0395 , Japan
| | - Tatsuya Ishiyama
- Department of Applied Chemistry, Graduate School of Science and Engineering , University of Toyama , 3190 Gofuku , Toyama 930-8555 , Japan
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14
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Synthesis of Furan-Substituted N-Heteroacene-Based Liquid Material and Its Acid-Recognizing Behavior. CRYSTALS 2019. [DOI: 10.3390/cryst9010051] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
In this study, we synthesized a novel N-heteroacene-based liquid material 6,7-bis(3,7,11-trimethyl-1-dodecyloxy)-2,3-difurylquinoxaline (RPNL 1), containing two furan rings. We revealed that RPNL 1 adopted a disordered liquid at 25 ∘ C, determined by polarized optical microscopic observation, differential scanning calorimetry, and X-ray diffraction measurements. The fluorescent spectrum measurement revealed that RPNL 1 showed a blue emission at 25 ∘ C. Dissolving benzene sulfonic acid (BSA) in RPNL 1 brought about dramatic changes in its physical properties, such as emission colors, as well as sample states. Upon recognizing BSA, photoluminescent color was changed into orange, as well as phase transition occurred from liquid to a liquid-crystalline phase. RPNL 1 can function as an acid-recognizing material, accompanied with the color changes in emission.
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15
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Wakchaure VC, Pillai LV, Goudappagouda G, Ranjeesh KC, Chakrabarty S, Ravindranathan S, Rajamohanan PR, Babu SS. Charge transfer liquid: a stable donor–acceptor interaction in the solvent-free liquid state. Chem Commun (Camb) 2019; 55:9371-9374. [DOI: 10.1039/c9cc03671g] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
A new charge transfer solvent-free liquid having high stability even with donor–acceptor ratio of 1000 : 1 is demonstrated.
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Affiliation(s)
- Vivek Chandrakant Wakchaure
- Organic Chemistry Division
- National Chemical Laboratory (CSIR-NCL)
- Pune-411008
- India
- Academy of Scientific and Innovative Research (AcSIR)
| | | | - Goudappagouda Goudappagouda
- Organic Chemistry Division
- National Chemical Laboratory (CSIR-NCL)
- Pune-411008
- India
- Academy of Scientific and Innovative Research (AcSIR)
| | - Kayaramkodath Chandran Ranjeesh
- Organic Chemistry Division
- National Chemical Laboratory (CSIR-NCL)
- Pune-411008
- India
- Academy of Scientific and Innovative Research (AcSIR)
| | - Suman Chakrabarty
- S. N. Bose National Centre for Basic Sciences JD Block
- Sector-III
- Kolkata-700 106
- India
| | - Sapna Ravindranathan
- Academy of Scientific and Innovative Research (AcSIR)
- Ghaziabad-201 002
- India
- Central NMR Facility
- National Chemical Laboratory (CSIR-NCL)
| | - Pattuparambil R. Rajamohanan
- Academy of Scientific and Innovative Research (AcSIR)
- Ghaziabad-201 002
- India
- Central NMR Facility
- National Chemical Laboratory (CSIR-NCL)
| | - Sukumaran Santhosh Babu
- Organic Chemistry Division
- National Chemical Laboratory (CSIR-NCL)
- Pune-411008
- India
- Academy of Scientific and Innovative Research (AcSIR)
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