1
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Mutoh K, Abe J. Fast photochromism of helicene-bridged imidazole dimers. Chem Sci 2024; 15:13343-13350. [PMID: 39183935 PMCID: PMC11339945 DOI: 10.1039/d4sc03578j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2024] [Accepted: 07/19/2024] [Indexed: 08/27/2024] Open
Abstract
The unique optical and magnetic properties of organic biradicaloids on polycyclic aromatic hydrocarbons are of fundamental interest in the development of novel organic optoelectronic materials. Open-shell π-conjugated molecules with helicity have recently attracted a great deal of attention due to the magnetic-field-dependence and spin-selectivity arising from the combination of helical chirality and electron spins. However, the molecular design for helical biradicaloids is limited due to the thermal instability and high reactivity. Herein, we achieved fast photochromic reactions and reversible photo-generation of biradical species using helicene-bridged imidazole dimers. A [9]helicene-bridged imidazole dimer exhibits reversible photochromism upon UV light irradiation. The transient species produced reversibly by UV light irradiation exhibited ESR spectra with a fine structure characteristic of a triplet radical pair, indicating the reversible generation of the biradical. The half-life of the thermal recombination reaction of the biradical was estimated to be 29 ms at 298 K. Conversely, a substantial activation energy barrier was confirmed for the intramolecular recombination reaction in the [7]helicene-bridged imidazole dimer, attributed to the extended pitch length of [7]helicene. The temperature dependence of the thermal back reactions revealed that the [7]helicene and [9]helicene moieties functioned as 'soft' and 'hard' molecular bridges, respectively. These findings pave the way for future advances in the development of photoswitchable helical biradicaloids.
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Affiliation(s)
- Katsuya Mutoh
- Department of Chemistry and Biological Science, College of Science and Engineering, Aoyama Gakuin University Sagamihara Kanagawa 252-5258 Japan
| | - Jiro Abe
- Department of Chemistry and Biological Science, College of Science and Engineering, Aoyama Gakuin University Sagamihara Kanagawa 252-5258 Japan
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2
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Liu JJ, Fu JJ, Shen X, Liu T, Cheng FX. The effect of dicarboxylic acid isomer on the photochromism of naphthalenediimide-based metal-organic frameworks. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.133346] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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3
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Abstract
We report the development of the stepwise photochromic imidazole dimer bridged by a sulfur atom. The one-photon absorption leads to the generation of the colored biradical species, which rapidly recombines to the initial imidazole dimer following first-order reaction kinetics. The further photochemical reaction of the biradical species produces the long-lived colored species, which shows intermolecular dimerization.
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Affiliation(s)
- Katsuya Mutoh
- Department of Chemistry, Aoyama Gakuin University, 5-10-1 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5258, Japan
| | - Jiro Abe
- Department of Chemistry, Aoyama Gakuin University, 5-10-1 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5258, Japan
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4
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Kawanishi Y, Mutoh K, Abe J, Kobayashi Y. Extending the Lifetimes of Charge Transfer States Generated by Photoinduced Heterolysis of Photochromic Radical Complexes. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100032] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Yasuki Kawanishi
- Department of Applied Chemistry College of Life Sciences Ritsumeikan University 1-1-1 Nojihigashi Kusatsu Shiga 525-8577 Japan
| | - Katsuya Mutoh
- Department of Chemistry Aoyama Gakuin University 5-10-1 Fuchinobe, Chuo-ku Sagamihara Kanagawa 252-5258 Japan
| | - Jiro Abe
- Department of Chemistry Aoyama Gakuin University 5-10-1 Fuchinobe, Chuo-ku Sagamihara Kanagawa 252-5258 Japan
| | - Yoichi Kobayashi
- Department of Applied Chemistry College of Life Sciences Ritsumeikan University 1-1-1 Nojihigashi Kusatsu Shiga 525-8577 Japan
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5
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Zhang G, Fu C, Zhang H, Zhang H. A multifunctional colorimetric sensor originating from a cadmium naphthalene diimide-based metal–organic framework: photochromism, hydrochromism, and vapochromism. CrystEngComm 2021. [DOI: 10.1039/d1ce00352f] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new cadmium metal–organic framework with photocontrolled luminescence properties and multiple chromic properties was synthesized for used as a multifunctional colorimetric sensor and provide a new route to design functional MOFs.
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Affiliation(s)
- Guoshuai Zhang
- Key Lab of Polyoxometalate Science of Ministry of Education
- Faculty of Chemistry
- Northeast Normal University
- Changchun 130024
- China
| | - Chen Fu
- Key Lab of Polyoxometalate Science of Ministry of Education
- Faculty of Chemistry
- Northeast Normal University
- Changchun 130024
- China
| | - Heyi Zhang
- Key Lab of Polyoxometalate Science of Ministry of Education
- Faculty of Chemistry
- Northeast Normal University
- Changchun 130024
- China
| | - Hong Zhang
- Key Lab of Polyoxometalate Science of Ministry of Education
- Faculty of Chemistry
- Northeast Normal University
- Changchun 130024
- China
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6
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Liu W, He J, Liu X, Yu Y, Pei Y, Zhu B, Cao H. Controllable Site-Selective Construction of 4- and 5-Hydroxyalkyl-Substituted Imidazoles from Amidines, Ynals, and Water. J Org Chem 2020; 85:14954-14962. [PMID: 33147029 DOI: 10.1021/acs.joc.0c01715] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The first example of controllable site-selective pathways to construct 4- and 5-hydroxyalkyl-substituted imidazoles through a three-component reaction of amidines, ynals, and water has been documented. Particularly, the high regioselectivity of the reaction was simply switched by changing the additives. In addition, further 18O-labeled experiments to probe a plausible mechanism and the gram-scale synthesis were studied.
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Affiliation(s)
- Wei Liu
- School of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University, Zhongshan 528458, P. R. of China
| | - Jiaming He
- School of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University, Zhongshan 528458, P. R. of China
| | - Xiang Liu
- School of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University, Zhongshan 528458, P. R. of China
| | - Yue Yu
- School of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University, Zhongshan 528458, P. R. of China
| | - Yongyan Pei
- School of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University, Zhongshan 528458, P. R. of China
| | - Baofu Zhu
- School of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University, Zhongshan 528458, P. R. of China
| | - Hua Cao
- School of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University, Zhongshan 528458, P. R. of China
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7
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Ito H, Tanaka S, Mutoh K, Abe J. Fast Photochromism of the Imidazole Dimers Bridged by Group 14 Atoms. Org Lett 2020; 22:5680-5684. [PMID: 32633969 DOI: 10.1021/acs.orglett.0c02072] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
We developed fast photochromic imidazole dimers bridged by group 14 atoms. These compounds reversibly break the C-N bond to generate the colored open-ring biradical form. The colored form thermally reproduces the initial colorless form in the microsecond time scales. Furthermore, the color of the biradical can be easily controlled by the introduction of two different types of the imidazolyl radicals. These results give attractive insights for the further development of fast photochromic imidazole dimers.
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Affiliation(s)
- Hiroki Ito
- Department of Chemistry, Aoyama Gakuin University, 5-10-1 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5258, Japan
| | - Sho Tanaka
- Department of Chemistry, Aoyama Gakuin University, 5-10-1 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5258, Japan
| | - Katsuya Mutoh
- Department of Chemistry, Aoyama Gakuin University, 5-10-1 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5258, Japan
| | - Jiro Abe
- Department of Chemistry, Aoyama Gakuin University, 5-10-1 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5258, Japan
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8
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Usui R, Yamamoto K, Okajima H, Mutoh K, Sakamoto A, Abe J, Kobayashi Y. Photochromic Radical Complexes That Show Heterolytic Bond Dissociation. J Am Chem Soc 2020; 142:10132-10142. [PMID: 32363867 DOI: 10.1021/jacs.0c02739] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Photochromic materials have been widely used in various research fields because of their variety of photoswitching properties based on various molecular frameworks and bond breaking processes, such as homolysis and heterolysis. However, while a number of photochromic molecular frameworks have been reported so far, there are few reports on photochromic molecular frameworks that show both homolysis and heterolysis depending on the substituents with high durability. The biradicals and zwitterions generated by homolysis and heterolysis have different physical and chemical properties and different potential applications. Therefore, the rational photochromic molecular design to control the bond dissociation in the excited state on demand expands the versatility for photoswitch materials beyond the conventional photochromic molecular frameworks. In this study, we synthesized novel photochromic molecules based on the framework of a radical-dissociation-type photochromic molecule: phenoxyl-imidazolyl radical complex (PIC). While the conventional PIC shows the photoinduced homolysis, the substitution of a strong electron-donating moiety to the phenoxyl moiety enables the bond dissociation process to be switched from homolysis to heterolysis. This study gives a strategy for controlling the bond dissociation process of the excited state of photochromic systems, and the strategy enables us to develop further novel radical and zwitterionic photoswitches.
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Affiliation(s)
- Ryosuke Usui
- Department of Applied Chemistry, College of Life Sciences, Ritsumeikan University, 1-1-1 Nojihigashi, Kusatsu, Shiga 525-8577, Japan
| | - Katsuya Yamamoto
- Department of Chemistry, School of Science and Engineering, Aoyama Gakuin University, 5-10-1 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5258, Japan
| | - Hajime Okajima
- Department of Chemistry, School of Science and Engineering, Aoyama Gakuin University, 5-10-1 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5258, Japan
| | - Katsuya Mutoh
- Department of Chemistry, School of Science and Engineering, Aoyama Gakuin University, 5-10-1 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5258, Japan
| | - Akira Sakamoto
- Department of Chemistry, School of Science and Engineering, Aoyama Gakuin University, 5-10-1 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5258, Japan
| | - Jiro Abe
- Department of Chemistry, School of Science and Engineering, Aoyama Gakuin University, 5-10-1 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5258, Japan
| | - Yoichi Kobayashi
- Department of Applied Chemistry, College of Life Sciences, Ritsumeikan University, 1-1-1 Nojihigashi, Kusatsu, Shiga 525-8577, Japan
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9
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Wang Q, Xi Chen, Wang XG, Liu HC, Liang YM. Base-Promoted Nitrile–Alkyne Domino-Type Cyclization: A General Method to Trisubstituted Imidazoles. Org Lett 2019; 21:9874-9877. [DOI: 10.1021/acs.orglett.9b03782] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Qiang Wang
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P.R. China
| | - Xi Chen
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P.R. China
| | - Xin-Gang Wang
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P.R. China
| | - Hong-Chao Liu
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P.R. China
| | - Yong-Min Liang
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P.R. China
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10
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Xiang SL, Hua QX, Gong WL, Xie NH, Zhao PJ, Cheng GJ, Li C, Zhu MQ. Photoplastic Transformation Based on Dynamic Covalent Chemistry. ACS APPLIED MATERIALS & INTERFACES 2019; 11:23623-23631. [PMID: 31184463 DOI: 10.1021/acsami.9b06608] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The magical fantasy of decades-old transformer characters is becoming closer to scientific reality, as transformable materials can change their shapes in response to thermal, mechanical, electrical, and chemical stimuli. However, precise and prompt control of plastic shaping remains to be wanted. Photoresponsive materials provide a promising alternative for rapid optomechanical shaping with limited success. Here, we report a new class of photoplastic transformation based on dynamic covalently crosslinked polytriazole (PTA) networks, in which crosslinking points are comprised of photocleaveable hexaarylbiimidazole (HABI). Upon sub-500 nm light irradiation, HABI is dissociated into two triphenylimidazole radicals (TPIRs) followed by spontaneous recombination back to the initial state. This photoswitching effect is demonstrated to generate nonthermal shape change in the PTA-HABI gel network at will upon light stimulus. A unique photoalignment phenomenon has also been discovered which can form oriented nanoscale patterning in the PTA-HABI gel network upon laser irradiation. The solvent-free PTA-HABI elastomer exhibits photoenhanced automatic self-healing properties at temperatures ranging from 25 °C to freezing points, which is attributed to the dynamic equilibrium between TPIRs and HABI. A photoplastic spring is fabricated and exhibits photoswitchable plastic behavior, i.e., a reversible transformation between plastic strain and elastic strain upon light irradiation. HABI-based polymer networks, including solvated gel and solvent-free elastomer, are promising as smart materials for nonthermal photoactivated shape changing, transformation, and self-healing applications.
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Affiliation(s)
- Shi-Li Xiang
- Wuhan National Laboratory for Optoelectronics, School of Optical and Electronic Information , Huazhong University of Science and Technology , Wuhan , Hubei 430074 , China
| | - Qiong-Xin Hua
- Wuhan National Laboratory for Optoelectronics, School of Optical and Electronic Information , Huazhong University of Science and Technology , Wuhan , Hubei 430074 , China
| | - Wen-Liang Gong
- Wuhan National Laboratory for Optoelectronics, School of Optical and Electronic Information , Huazhong University of Science and Technology , Wuhan , Hubei 430074 , China
| | - Nuo-Hua Xie
- Wuhan National Laboratory for Optoelectronics, School of Optical and Electronic Information , Huazhong University of Science and Technology , Wuhan , Hubei 430074 , China
| | - Peng-Ju Zhao
- Wuhan National Laboratory for Optoelectronics, School of Optical and Electronic Information , Huazhong University of Science and Technology , Wuhan , Hubei 430074 , China
| | - Gary J Cheng
- School of Industrial Engineering , Purdue University , West Lafayette , Indiana 47907 , United States
| | - Chong Li
- Wuhan National Laboratory for Optoelectronics, School of Optical and Electronic Information , Huazhong University of Science and Technology , Wuhan , Hubei 430074 , China
| | - Ming-Qiang Zhu
- Wuhan National Laboratory for Optoelectronics, School of Optical and Electronic Information , Huazhong University of Science and Technology , Wuhan , Hubei 430074 , China
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11
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Mutoh K, Abe J. Photosynergetic Response of High-Performance Fast Photochromic Molecules Based on Imidazolyl Radicals. J SYN ORG CHEM JPN 2019. [DOI: 10.5059/yukigoseikyokaishi.77.482] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
| | - Jiro Abe
- Department of Chemistry, School of Science and Engineering, Aoyama Gakuin University
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12
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Yamamoto K, Gomita I, Okajima H, Sakamoto A, Mutoh K, Abe J. Electrochromism of fast photochromic radical complexes forming light-unresponsive stable colored radical cation. Chem Commun (Camb) 2019; 55:4917-4920. [PMID: 30882118 DOI: 10.1039/c9cc00455f] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We demonstrated the electrochromism of photochromic radical complexes containing triaryl imidazole: fast photoswitchable pentaarylbiimidazole (PABI) and the phenoxyl-imidazolyl radical complex (PIC). Cyclic voltammetry and spectroelectrochemistry revealed that PABI and PIC generate the highly stable radical cation by one-electron oxidation accompanied by a color change from colorless to green. The stability of the radical cation is strongly affected by the dihedral angle between the imidazole ring and the phenyl ring at the 2-position of the imidazole ring.
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Affiliation(s)
- Katsuya Yamamoto
- Department of Chemistry, School of Science and Engineering, Aoyama Gakuin University, 5-10-1 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5258, Japan.
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13
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Yan G, Lian Y, Gu Y, Yang C, Sun H, Mu Q, Li Q, Zhu W, Zheng X, Chen M, Zhu J, Deng Z, Peng Y. Phase and Morphology Transformation of MnO2 Induced by Ionic Liquids toward Efficient Water Oxidation. ACS Catal 2018. [DOI: 10.1021/acscatal.8b02203] [Citation(s) in RCA: 70] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Gangbin Yan
- Soochow Institute of Energy and Material Innovations, College of Physics, Optoelectronics and Energy, Soochow University, Suzhou 215006, China
- Provincial Key Laboratory for Advanced Carbon Materials and Wearable Energy Technologies, Soochow University, Suzhou 215006, China
| | - Yuebin Lian
- Soochow Institute of Energy and Material Innovations, College of Physics, Optoelectronics and Energy, Soochow University, Suzhou 215006, China
- Provincial Key Laboratory for Advanced Carbon Materials and Wearable Energy Technologies, Soochow University, Suzhou 215006, China
| | - Yindong Gu
- Soochow Institute of Energy and Material Innovations, College of Physics, Optoelectronics and Energy, Soochow University, Suzhou 215006, China
- Provincial Key Laboratory for Advanced Carbon Materials and Wearable Energy Technologies, Soochow University, Suzhou 215006, China
| | - Cheng Yang
- Soochow Institute of Energy and Material Innovations, College of Physics, Optoelectronics and Energy, Soochow University, Suzhou 215006, China
- Provincial Key Laboratory for Advanced Carbon Materials and Wearable Energy Technologies, Soochow University, Suzhou 215006, China
| | - Hao Sun
- Soochow Institute of Energy and Material Innovations, College of Physics, Optoelectronics and Energy, Soochow University, Suzhou 215006, China
- Provincial Key Laboratory for Advanced Carbon Materials and Wearable Energy Technologies, Soochow University, Suzhou 215006, China
| | - Qiaoqiao Mu
- Soochow Institute of Energy and Material Innovations, College of Physics, Optoelectronics and Energy, Soochow University, Suzhou 215006, China
- Provincial Key Laboratory for Advanced Carbon Materials and Wearable Energy Technologies, Soochow University, Suzhou 215006, China
| | - Qin Li
- Soochow Institute of Energy and Material Innovations, College of Physics, Optoelectronics and Energy, Soochow University, Suzhou 215006, China
- Provincial Key Laboratory for Advanced Carbon Materials and Wearable Energy Technologies, Soochow University, Suzhou 215006, China
| | - Wei Zhu
- Soochow Institute of Energy and Material Innovations, College of Physics, Optoelectronics and Energy, Soochow University, Suzhou 215006, China
- Provincial Key Laboratory for Advanced Carbon Materials and Wearable Energy Technologies, Soochow University, Suzhou 215006, China
| | - Xusheng Zheng
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui 230029, China
| | - Muzi Chen
- Analysis and Testing Center, Soochow University, Suzhou 215123, China
| | - Junfa Zhu
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui 230029, China
| | - Zhao Deng
- Soochow Institute of Energy and Material Innovations, College of Physics, Optoelectronics and Energy, Soochow University, Suzhou 215006, China
- Provincial Key Laboratory for Advanced Carbon Materials and Wearable Energy Technologies, Soochow University, Suzhou 215006, China
| | - Yang Peng
- Soochow Institute of Energy and Material Innovations, College of Physics, Optoelectronics and Energy, Soochow University, Suzhou 215006, China
- Provincial Key Laboratory for Advanced Carbon Materials and Wearable Energy Technologies, Soochow University, Suzhou 215006, China
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14
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Stepwise two-photon absorption processes utilizing photochromic reactions. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY C-PHOTOCHEMISTRY REVIEWS 2018. [DOI: 10.1016/j.jphotochemrev.2017.12.006] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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15
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Yonekawa I, Mutoh K, Kobayashi Y, Abe J. Intensity-Dependent Photoresponse of Biphotochromic Molecule Composed of a Negative and a Positive Photochromic Unit. J Am Chem Soc 2018; 140:1091-1097. [DOI: 10.1021/jacs.7b11673] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Izumi Yonekawa
- Department
of Chemistry, School of Science and Engineering, Aoyama Gakuin University, 5-10-1 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5258, Japan
| | - Katsuya Mutoh
- Department
of Chemistry, School of Science and Engineering, Aoyama Gakuin University, 5-10-1 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5258, Japan
| | - Yoichi Kobayashi
- Department
of Applied Chemistry, College of Life Sciences, Ritsumeikan University, 1-1-1 Noji-higashi, Kusatsu, Shiga 525-8577, Japan
| | - Jiro Abe
- Department
of Chemistry, School of Science and Engineering, Aoyama Gakuin University, 5-10-1 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5258, Japan
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16
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Fu C, Wang HY, Zhang GS, Li L, Sun YN, Fu JW, Zhang H. The influence of the secondary building linker geometry on the photochromism of naphthalenediimide-based metal–organic frameworks. CrystEngComm 2018. [DOI: 10.1039/c8ce00892b] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The photochromism of three MOFs based on NDI chromophores is mainly induced by two kinds of non-covalent intermolecular interactions.
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Affiliation(s)
- Chen Fu
- Institute of Polyoxometalate Chemistry
- Department of Chemistry
- Northeast Normal University
- Changchun
- PR China
| | - Hai-Yu Wang
- Institute of Polyoxometalate Chemistry
- Department of Chemistry
- Northeast Normal University
- Changchun
- PR China
| | - Guo-Shuai Zhang
- Institute of Polyoxometalate Chemistry
- Department of Chemistry
- Northeast Normal University
- Changchun
- PR China
| | - Li Li
- Institute of Polyoxometalate Chemistry
- Department of Chemistry
- Northeast Normal University
- Changchun
- PR China
| | - Ya-Nan Sun
- Institute of Polyoxometalate Chemistry
- Department of Chemistry
- Northeast Normal University
- Changchun
- PR China
| | - Jia-Wei Fu
- Institute of Polyoxometalate Chemistry
- Department of Chemistry
- Northeast Normal University
- Changchun
- PR China
| | - Hong Zhang
- Institute of Polyoxometalate Chemistry
- Department of Chemistry
- Northeast Normal University
- Changchun
- PR China
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17
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Kundu A, Karthikeyan S, Sagara Y, Moon D, Anthony SP. Unusual fluorescent photoswitching of imidazole derivatives: the role of molecular conformation and twist angle controlled organic solid state fluorescence. Phys Chem Chem Phys 2018; 20:27385-27393. [DOI: 10.1039/c8cp05355c] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Triphenylamine-imidazole molecules exhibited unprecedented light induced fluorescence switching via conformational change.
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Affiliation(s)
- Anu Kundu
- Department of Chemistry
- School of Chemical & Biotechnology
- SASTRA Deemed University
- Thanjavur-613401
- India
| | | | - Yoshimitsu Sagara
- Research Institute for Electronic Science
- Hokkaido University
- Sapporo 001-0020
- Japan
| | - Dohyun Moon
- Beamline Department
- Pohang Accelerator Laboratory
- Pohang
- Korea
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18
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Theoretical investigation of the photochromic properties of [2.2]paracyclophane-bridged imidazole dimers and bis(imidazole) dimers. Tetrahedron 2017. [DOI: 10.1016/j.tet.2017.05.050] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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19
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Zhang KP, Jin TQ, Zhou JQ, Ma TT, Jin CM. Syntheses of Symmetric and Unsymmetric Bis-imidazole Derivatives Using Phase-Transfer Catalysis. J Heterocycl Chem 2017. [DOI: 10.1002/jhet.2917] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Kun-Peng Zhang
- Hubei Collaborative Innovation Center for Rare Metal Chemistry, Hubei Key Laboratory of Pollutant Analysis and Reuse Technology, College of Chemistry and Chemical Engineering; Hubei Normal University; Huangshi 435002 People's Republic of China
| | - Tian-Qi Jin
- Hubei Collaborative Innovation Center for Rare Metal Chemistry, Hubei Key Laboratory of Pollutant Analysis and Reuse Technology, College of Chemistry and Chemical Engineering; Hubei Normal University; Huangshi 435002 People's Republic of China
| | - Jun-Qiang Zhou
- Hubei Collaborative Innovation Center for Rare Metal Chemistry, Hubei Key Laboratory of Pollutant Analysis and Reuse Technology, College of Chemistry and Chemical Engineering; Hubei Normal University; Huangshi 435002 People's Republic of China
| | - Ting-Ting Ma
- Hubei Collaborative Innovation Center for Rare Metal Chemistry, Hubei Key Laboratory of Pollutant Analysis and Reuse Technology, College of Chemistry and Chemical Engineering; Hubei Normal University; Huangshi 435002 People's Republic of China
| | - Chuan-Ming Jin
- Hubei Collaborative Innovation Center for Rare Metal Chemistry, Hubei Key Laboratory of Pollutant Analysis and Reuse Technology, College of Chemistry and Chemical Engineering; Hubei Normal University; Huangshi 435002 People's Republic of China
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20
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Hua QX, Xin B, Xiong ZJ, Gong WL, Li C, Huang ZL, Zhu MQ. Super-resolution imaging of self-assembly of amphiphilic photoswitchable macrocycles. Chem Commun (Camb) 2017; 53:2669-2672. [DOI: 10.1039/c7cc00044h] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Self-assembly of an amphiphilic photoswitchable fluorescent macrocycle methoxy-tetraethylene glycol-substituted hexaarylbiimidazole-borondipyrromethene can be observed directly under a super-resolution fluorescence microscope, with the nanoscale resolution beyond the optical diffraction limitation.
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Affiliation(s)
- Qiong-Xin Hua
- Wuhan National Laboratory for Optoelectronics
- School of Optical and Electronic Information
- Huazhong University of Science and Technology
- Wuhan
- China
| | - Bo Xin
- Wuhan National Laboratory for Optoelectronics
- School of Optical and Electronic Information
- Huazhong University of Science and Technology
- Wuhan
- China
| | - Zu-Jing Xiong
- Wuhan National Laboratory for Optoelectronics
- School of Optical and Electronic Information
- Huazhong University of Science and Technology
- Wuhan
- China
| | - Wen-Liang Gong
- Wuhan National Laboratory for Optoelectronics
- School of Optical and Electronic Information
- Huazhong University of Science and Technology
- Wuhan
- China
| | - Chong Li
- Wuhan National Laboratory for Optoelectronics
- School of Optical and Electronic Information
- Huazhong University of Science and Technology
- Wuhan
- China
| | - Zhen-Li Huang
- Wuhan National Laboratory for Optoelectronics
- School of Optical and Electronic Information
- Huazhong University of Science and Technology
- Wuhan
- China
| | - Ming-Qiang Zhu
- Wuhan National Laboratory for Optoelectronics
- School of Optical and Electronic Information
- Huazhong University of Science and Technology
- Wuhan
- China
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21
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Skonieczny K, Gryko DT. Light-Induced Direct Arylation in the Solid Crystalline State as a Strategy Towards π-Expanded Imidazoles. Chem Asian J 2016; 11:2513-7. [PMID: 27452918 DOI: 10.1002/asia.201600752] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2016] [Indexed: 12/21/2022]
Abstract
π-Expanded imidazoles bearing the 2-iodophenyl substituent at position 2 undergo direct photoinduced intramolecular arylation in the solid, crystalline state leading to large non-planar heterocycles. An analogous reaction employing 2-bromophenyl and 2-chlorophenyl substituents is considerably slower. Such processes have never before been demonstrated to occur in crystals and have allowed the efficient synthesizes of structurally unique compounds containing either the phenanthro[9',10':4,5]imidazo[1,2-f]phenanthridine moiety or structurally related skeletons. The reaction occurs in the thin crystalline layers irradiated with UV photons in an almost quantitative manner over 48-72 h. Several previously unknown architectures have been prepared using this methodology. Furthermore, the optical properties of these π-expanded imidazoles can be altered with the addition of heteroatoms and/or electron-donating groups.
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Affiliation(s)
- Kamil Skonieczny
- Institute of Organic Chemistry, Polish Academy of Sciences, Kasprzaka 44-52, 01-224, Warsaw, Poland
| | - Daniel T Gryko
- Institute of Organic Chemistry, Polish Academy of Sciences, Kasprzaka 44-52, 01-224, Warsaw, Poland.
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22
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Kobayashi Y, Mutoh K, Abe J. Fast Photochromic Molecules toward Realization of Photosynergetic Effects. J Phys Chem Lett 2016; 7:3666-3675. [PMID: 27585058 DOI: 10.1021/acs.jpclett.6b01690] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
There has been a growing interest toward the development of advanced photofunctional materials whose photoresponses involve multiple photons and molecules because these materials show the photoresponses which cannot be achieved by a one-photon reaction of a single chromophore. These cooperative interactions of multiple photons and molecules are recently termed as the "photosynergetic" effects, and the understanding and utilization of these effects are becoming important research topics. In this Perspective, we overview the recent progress of the fast T-type photochromic molecules involving the stepwise two-photon absorption processes. Although high power pulse lasers were necessary to induce conventional simultaneous and stepwise two-photon absorption processes, the stepwise two-photon absorption process with the fast photochromic compound can be initiated by extremely weak continuous wave (CW) LEDs. The basic concept and future outlook of the fast photochromism involving the stepwise two-photon absorption process will be discussed.
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Affiliation(s)
- Yoichi Kobayashi
- Department of Chemistry, School of Science and Engineering, Aoyama Gakuin University , 5-10-1 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5258, Japan
| | - Katsuya Mutoh
- Department of Chemistry, School of Science and Engineering, Aoyama Gakuin University , 5-10-1 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5258, Japan
| | - Jiro Abe
- Department of Chemistry, School of Science and Engineering, Aoyama Gakuin University , 5-10-1 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5258, Japan
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23
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Kobayashi Y, Shima K, Mutoh K, Abe J. Fast Photochromism Involving Thermally-Activated Valence Isomerization of Phenoxyl-Imidazolyl Radical Complex Derivatives. J Phys Chem Lett 2016; 7:3067-3072. [PMID: 27454008 DOI: 10.1021/acs.jpclett.6b01271] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Open-shell biradicals have received considerable attention in material science because of their high two-photon absorption cross sections and broad and high absorptive features over the visible region. However, the instability of the biradical caused by the open-shell nature was one of the drawbacks; therefore, novel radical compounds which can suppress unwanted reactions by tuning the open-shell features are desired to expand the versatility of the radical compounds. Here, we report a novel radical-dissociation-type photochromic compound whose photochromic reaction involves a valence isomerization from the open-shell biradical to closed-shell quinoidal forms by using a phenoxyl-imidazolyl radical complex framework. The valence isomerization from the biradical to quinoid forms effectively tunes the open-shell feature in time and drastically changes the spectral features, which were revealed by time-resolved Fourier transform infrared spectroscopy. This novel fast photochromic property not only is important for fundamental spin chemistry but also expands the versatility of the radical compounds for novel advanced photofunctional materials.
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Affiliation(s)
- Yoichi Kobayashi
- Department of Chemistry, School of Science and Engineering, Aoyama Gakuin University , 5-10-1 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5258, Japan
| | - Kentaro Shima
- Department of Chemistry, School of Science and Engineering, Aoyama Gakuin University , 5-10-1 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5258, Japan
| | - Katsuya Mutoh
- Department of Chemistry, School of Science and Engineering, Aoyama Gakuin University , 5-10-1 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5258, Japan
| | - Jiro Abe
- Department of Chemistry, School of Science and Engineering, Aoyama Gakuin University , 5-10-1 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5258, Japan
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24
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Comparisons on isomeric 1,10-phenanthroline aromatic heterocyclic derivatives with triphenylamine and thiophene donors before and after rhenium(I) carbonyl complexation. Tetrahedron 2016. [DOI: 10.1016/j.tet.2016.04.061] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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25
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Kobayashi Y, Katayama T, Yamane T, Setoura K, Ito S, Miyasaka H, Abe J. Stepwise Two-Photon-Induced Fast Photoswitching via Electron Transfer in Higher Excited States of Photochromic Imidazole Dimer. J Am Chem Soc 2016; 138:5930-8. [DOI: 10.1021/jacs.6b01470] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Yoichi Kobayashi
- Department
of Chemistry, School of Science and Engineering, Aoyama Gakuin University, 5-10-1 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5258, Japan
| | - Tetsuro Katayama
- Division
of Frontier Materials Science and Center for Promotion of Advanced
Interdisciplinary Research, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531, Japan
| | - Takuya Yamane
- Department
of Chemistry, School of Science and Engineering, Aoyama Gakuin University, 5-10-1 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5258, Japan
| | - Kenji Setoura
- Division
of Frontier Materials Science and Center for Promotion of Advanced
Interdisciplinary Research, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531, Japan
| | - Syoji Ito
- Division
of Frontier Materials Science and Center for Promotion of Advanced
Interdisciplinary Research, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531, Japan
| | - Hiroshi Miyasaka
- Division
of Frontier Materials Science and Center for Promotion of Advanced
Interdisciplinary Research, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531, Japan
| | - Jiro Abe
- Department
of Chemistry, School of Science and Engineering, Aoyama Gakuin University, 5-10-1 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5258, Japan
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26
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Skonieczny K, Yoo J, Larsen JM, Espinoza EM, Barbasiewicz M, Vullev VI, Lee CH, Gryko DT. How To Reach Intense Luminescence for Compounds Capable of Excited-State Intramolecular Proton Transfer? Chemistry 2016; 22:7485-96. [PMID: 27062363 DOI: 10.1002/chem.201504944] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2015] [Indexed: 01/03/2023]
Abstract
Photoinduced intramolecular direct arylation allows structurally unique compounds containing phenanthro[9',10':4,5]imidazo[1,2-f]phenanthridine and imidazo[1,2-f]phenanthridine skeletons, which mediate excited-state intramolecular proton transfer (ESIPT), to be efficiently synthesized. The developed polycyclic aromatics demonstrate that the combination of five-membered ring structures with a rigid arrangement between a proton donor and a proton acceptor provides a means for attaining large fluorescence quantum yields, exceeding 0.5, even in protic solvents. Steady-state and time-resolved UV/Vis spectroscopy reveals that, upon photoexcitation, the prepared protic heteroaromatics undergo ESIPT, converting them efficiently into their excited-state keto tautomers, which have lifetimes ranging from about 5 to 10 ns. The rigidity of their structures, which suppresses nonradiative decay pathways, is believed to be the underlying reason for the nanosecond lifetimes of these singlet excited states and the observed high fluorescence quantum yields. Hydrogen bonding with protic solvents does not interfere with the excited-state dynamics and, as a result, there is no difference between the occurrences of ESIPT processes in MeOH versus cyclohexane. Acidic media has a more dramatic effect on suppressing ESIPT by protonating the proton acceptor. As a result, in the presence of an acid, a larger proportion of the fluorescence of ESIPT-capable compounds originates from their enol excited states.
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Affiliation(s)
- Kamil Skonieczny
- Institute of Organic Chemistry, Polish Academy of Sciences, Kasprzaka 44-52, 01-224, Warsaw, Poland.,Department of Bioengineering, University of California, Riverside, CA, 92521, USA
| | - Jaeduk Yoo
- Department of Chemistry, Kangwon National University, Chuncheon, 23417, Republic of Korea
| | - Jillian M Larsen
- Department of Bioengineering, University of California, Riverside, CA, 92521, USA
| | - Eli M Espinoza
- Department of Chemistry, University of California, Riverside, CA, 92521, USA
| | - Michał Barbasiewicz
- Faculty of Chemistry, University of Warsaw, Pasteura 1, 02-093, Warsaw, Poland
| | - Valentine I Vullev
- Department of Bioengineering, University of California, Riverside, CA, 92521, USA. .,Department of Chemistry, University of California, Riverside, CA, 92521, USA.
| | - Chang-Hee Lee
- Department of Chemistry, Kangwon National University, Chuncheon, 23417, Republic of Korea.
| | - Daniel T Gryko
- Institute of Organic Chemistry, Polish Academy of Sciences, Kasprzaka 44-52, 01-224, Warsaw, Poland.
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27
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Delcourt ML, Turcaud S, Benedetti E, Micouin L. Efficient and Scalable Kinetic Resolution of Racemic 4-Formyl[2.2]paracyclophaneviaAsymmetric Transfer Hydrogenation. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201501153] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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28
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Swaminathan S, Garcia-Amorós J, Thapaliya ER, Nonell S, Captain B, Raymo FM. Tuning the Activation Wavelength of Photochromic Oxazines. Chemphyschem 2016; 17:1852-9. [DOI: 10.1002/cphc.201600141] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2016] [Indexed: 11/11/2022]
Affiliation(s)
- Subramani Swaminathan
- Laboratory for Molecular Photonics, Department of Chemistry; University of Miami; 1301 Memorial Drive Florida 33146-0431 USA
| | - Jaume Garcia-Amorós
- Laboratory for Molecular Photonics, Department of Chemistry; University of Miami; 1301 Memorial Drive Florida 33146-0431 USA
- Grup de Materials Orgànics; Institut de Nanociència i Nanotecnologia (IN2UB); Departament de Química Orgànica; Universitat de Barcelona; Martí i Franqués 1 E-08028 Barcelona Spain
| | - Ek Raj Thapaliya
- Laboratory for Molecular Photonics, Department of Chemistry; University of Miami; 1301 Memorial Drive Florida 33146-0431 USA
| | - Santi Nonell
- Grup O'Enginyeria Molecular; Institut Químic de Sarrià; Universitat Ramón Llull; Via Augusta 390 E-08017 Barcelona Spain
| | - Burjor Captain
- Laboratory for Molecular Photonics, Department of Chemistry; University of Miami; 1301 Memorial Drive Florida 33146-0431 USA
| | - Françisco M. Raymo
- Laboratory for Molecular Photonics, Department of Chemistry; University of Miami; 1301 Memorial Drive Florida 33146-0431 USA
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29
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Ikezawa T, Mutoh K, Kobayashi Y, Abe J. Thiophene-substituted phenoxyl-imidazolyl radical complexes with high photosensitivity. Chem Commun (Camb) 2016; 52:2465-8. [DOI: 10.1039/c5cc10133f] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Fast photoswitch molecules became sensitive to visible light by using a thiophene ring as a radical linker unit.
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Affiliation(s)
- Takahiro Ikezawa
- Department of Chemistry
- School of Science and Engineering
- Aoyama Gakuin University
- Sagamihara
- Japan
| | - Katsuya Mutoh
- Department of Chemistry
- School of Science and Engineering
- Aoyama Gakuin University
- Sagamihara
- Japan
| | - Yoichi Kobayashi
- Department of Chemistry
- School of Science and Engineering
- Aoyama Gakuin University
- Sagamihara
- Japan
| | - Jiro Abe
- Department of Chemistry
- School of Science and Engineering
- Aoyama Gakuin University
- Sagamihara
- Japan
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30
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Zhang YJ, Chen C, Tan B, Cai LX, Yang XD, Zhang J. A dual-stimuli responsive small molecule organic material with tunable multi-state response showing turn-on luminescence and photocoloration. Chem Commun (Camb) 2016; 52:2835-8. [DOI: 10.1039/c5cc09799a] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
A multiple responsive organic small molecular material has been developed, which exhibits dual pathway photoreactions and gives turn-on luminescence and photocoloration under different light sources.
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Affiliation(s)
- Ya-Jun Zhang
- State Key Laboratory of Structural Chemistry
- Fujian Institute of Research on the Structure of Matter
- CAS
- Fuzhou
- P. R. China
| | - Cheng Chen
- State Key Laboratory of Structural Chemistry
- Fujian Institute of Research on the Structure of Matter
- CAS
- Fuzhou
- P. R. China
| | - Bin Tan
- State Key Laboratory of Structural Chemistry
- Fujian Institute of Research on the Structure of Matter
- CAS
- Fuzhou
- P. R. China
| | - Li-Xuan Cai
- State Key Laboratory of Structural Chemistry
- Fujian Institute of Research on the Structure of Matter
- CAS
- Fuzhou
- P. R. China
| | - Xiao-Dong Yang
- State Key Laboratory of Structural Chemistry
- Fujian Institute of Research on the Structure of Matter
- CAS
- Fuzhou
- P. R. China
| | - Jie Zhang
- State Key Laboratory of Structural Chemistry
- Fujian Institute of Research on the Structure of Matter
- CAS
- Fuzhou
- P. R. China
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31
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Gong WL, Yan J, Zhao LX, Li C, Huang ZL, Tang BZ, Zhu MQ. Single-wavelength-controlled in situ dynamic super-resolution fluorescence imaging for block copolymer nanostructures via blue-light-switchable FRAP. Photochem Photobiol Sci 2016; 15:1433-1441. [DOI: 10.1039/c6pp00293e] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
A blue-light-switchable fluorophore enables single-wavelength controlledin situdynamic super-resolution imaging of block copolymers.
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Affiliation(s)
- Wen-Liang Gong
- Wuhan National Laboratory for Optoelectronics
- College of Optical and Electronic Information
- Huazhong University of Science and Technology
- Wuhan
- China
| | - Jie Yan
- Wuhan National Laboratory for Optoelectronics
- College of Optical and Electronic Information
- Huazhong University of Science and Technology
- Wuhan
- China
| | - Ling-Xi Zhao
- Wuhan National Laboratory for Optoelectronics
- College of Optical and Electronic Information
- Huazhong University of Science and Technology
- Wuhan
- China
| | - Chong Li
- Wuhan National Laboratory for Optoelectronics
- College of Optical and Electronic Information
- Huazhong University of Science and Technology
- Wuhan
- China
| | - Zhen-Li Huang
- Wuhan National Laboratory for Optoelectronics
- College of Optical and Electronic Information
- Huazhong University of Science and Technology
- Wuhan
- China
| | - Ben Zhong Tang
- Department of Chemistry
- The Hong Kong University of Science and Technology
- China
| | - Ming-Qiang Zhu
- Wuhan National Laboratory for Optoelectronics
- College of Optical and Electronic Information
- Huazhong University of Science and Technology
- Wuhan
- China
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32
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Mutoh K, Arai H, Kobayashi Y, Abe J. Photo-control of the thermal radical recombination reaction: photochromism of an azobenzene-bridged imidazole dimer. PURE APPL CHEM 2015. [DOI: 10.1515/pac-2014-0910] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
AbstractAmong various kinds of photochromic compounds, bridged imidazole dimers have been known as fast photo-switch molecules. Bridged imidazole dimers have opened up various potential applications to photochromic lenses and real-time holographic displays. The optical properties of bridged imidazole dimers strongly depend on the bridging moiety to tether two imidazole rings. Therefore, the control of the bridging structure by introducing another photochromic moiety would increase the versatility of bridged imidazole dimers. In this study, we designed and synthesized a new type of the bridged imidazole dimer 1 which has the azobenzene moiety as the photo-responsive linker. The cis–trans isomerization of the azobenzene moiety enables to change the distance between the photogenerated radical pairs. The two structural isomers, cis–1 and trans–1, are observed and both compounds undergo the photochromism to produce the imidazolyl radicals. We found that the two imidazolyl radicals generated from cis–1 are close enough to form the intramolecular C–N bond, whereas the imidazolyl radicals of trans–1 undergo the intermolecular recombination reaction due to the long distance between the radicals. Our results demonstrate the control of intra-/intermolecular radical recombination reactions by the combination of the two photochromic compounds.
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Affiliation(s)
- Katsuya Mutoh
- 1Department of Chemistry, School of Science and Engineering, Aoyama Gakuin University, 5-10-1 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5258, Japan
| | - Hiroki Arai
- 1Department of Chemistry, School of Science and Engineering, Aoyama Gakuin University, 5-10-1 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5258, Japan
| | - Yoichi Kobayashi
- 1Department of Chemistry, School of Science and Engineering, Aoyama Gakuin University, 5-10-1 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5258, Japan
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33
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Skonieczny K, Gryko DT. Photochemical Conversion of Phenanthro[9,10-d]imidazoles into π-Expanded Heterocycles. J Org Chem 2015; 80:5753-63. [DOI: 10.1021/acs.joc.5b00714] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Kamil Skonieczny
- Institute of Organic Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland
| | - Daniel T. Gryko
- Institute of Organic Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland
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34
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Yamashita H, Ikezawa T, Kobayashi Y, Abe J. Photochromic Phenoxyl-Imidazolyl Radical Complexes with Decoloration Rates from Tens of Nanoseconds to Seconds. J Am Chem Soc 2015; 137:4952-5. [DOI: 10.1021/jacs.5b02353] [Citation(s) in RCA: 57] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Hiroaki Yamashita
- Department
of Chemistry, School of Science and Engineering, Aoyama Gakuin University, 5-10-1 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5258, Japan
| | - Takahiro Ikezawa
- Department
of Chemistry, School of Science and Engineering, Aoyama Gakuin University, 5-10-1 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5258, Japan
| | - Yoichi Kobayashi
- Department
of Chemistry, School of Science and Engineering, Aoyama Gakuin University, 5-10-1 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5258, Japan
| | - Jiro Abe
- Department
of Chemistry, School of Science and Engineering, Aoyama Gakuin University, 5-10-1 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5258, Japan
- CREST, Japan Science and Technology Agency (JST), K’s Gobancho, 7 Gobancho, Chiyoda-ku, Tokyo 102-0076, Japan
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35
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Shima K, Mutoh K, Kobayashi Y, Abe J. Relationship between Activation Volume and Polymer Matrix Effects on Photochromic Performance: Bridging Molecular Parameter to Macroscale Effect. J Phys Chem A 2015; 119:1087-93. [DOI: 10.1021/jp511074y] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Kentaro Shima
- Department
of Chemistry, School of Science and Engineering, Aoyama Gakuin University, 5-10-1 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5258, Japan
| | - Katsuya Mutoh
- Department
of Chemistry, School of Science and Engineering, Aoyama Gakuin University, 5-10-1 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5258, Japan
| | - Yoichi Kobayashi
- Department
of Chemistry, School of Science and Engineering, Aoyama Gakuin University, 5-10-1 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5258, Japan
| | - Jiro Abe
- Department
of Chemistry, School of Science and Engineering, Aoyama Gakuin University, 5-10-1 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5258, Japan
- CREST, Japan Science and Technology Agency (JST), K’s Gobancho, 7 Gobancho, Chiyoda-ku, Tokyo 102-0076, Japan
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36
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Yamaguchi T, Hilbers MF, Reinders PP, Kobayashi Y, Brouwer AM, Abe J. Nanosecond photochromic molecular switching of a biphenyl-bridged imidazole dimer revealed by wide range transient absorption spectroscopy. Chem Commun (Camb) 2015; 51:1375-8. [DOI: 10.1039/c4cc06001f] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We demonstrate that a biphenyl-bridged imidazole dimer exhibits fast photochromism with a thermal recovery time constant of ∼100 ns, which is the fastest thermal back reaction in all reported imidazole dimers.
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Affiliation(s)
- Tetsuo Yamaguchi
- Department of Chemistry
- School of Science and Engineering
- Aoyama Gakuin University
- Sagamihara
- Japan
| | - Michiel F. Hilbers
- University of Amsterdam
- van't Hoff Institute for Molecular Sciences
- 1090 GD Amsterdam
- The Netherlands
| | - Paul P. Reinders
- University of Amsterdam
- van't Hoff Institute for Molecular Sciences
- 1090 GD Amsterdam
- The Netherlands
| | - Yoichi Kobayashi
- Department of Chemistry
- School of Science and Engineering
- Aoyama Gakuin University
- Sagamihara
- Japan
| | - Albert M. Brouwer
- University of Amsterdam
- van't Hoff Institute for Molecular Sciences
- 1090 GD Amsterdam
- The Netherlands
| | - Jiro Abe
- Department of Chemistry
- School of Science and Engineering
- Aoyama Gakuin University
- Sagamihara
- Japan
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37
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Mutoh K, Abe J. Pressure effects on the radical-radical recombination reaction of photochromic bridged imidazole dimers. Phys Chem Chem Phys 2014; 16:17537-40. [PMID: 25025786 DOI: 10.1039/c4cp02793k] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The bridged imidazole dimers are some of the attractive fast photochromic compounds which have potential applications to the ophthalmic lenses, real-time hologram and molecular machines. The strategy for expanding their photochromic properties such as the colour variation and tuning the decolouration rates has been vigorously investigated, but the insight into the structural changes along the photochromic reactions has not been demonstrated in detail. Here, we demonstrated the pressure dependence of the radical-radical recombination reaction of the bridged imidazole dimers. The radical-radical interaction can be controlled by applying high pressure. Our results give fundamental information about the molecular dynamics of the bridged imidazole dimers, leading to the development of new functional photochromic machines and pressure-sensitive photochromic materials.
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Affiliation(s)
- Katsuya Mutoh
- Department of Chemistry, School of Science and Engineering, Aoyama Gakuin University, 5-10-1 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5258, Japan.
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Iwasaki T, Kato T, Kobayashi Y, Abe J. A chiral BINOL-bridged imidazole dimer possessing sub-millisecond fast photochromism. Chem Commun (Camb) 2014; 50:7481-4. [DOI: 10.1039/c4cc02710h] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
We developed a chiral BINOL-bridged imidazole dimer which acts as a 100 μs fast photochromic switch with high durability.
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Affiliation(s)
- Takahiro Iwasaki
- Department of Chemistry
- School of Science and Engineering
- Aoyama Gakuin University
- Sagamihara, Japan
| | - Tetsuya Kato
- Department of Chemistry
- School of Science and Engineering
- Aoyama Gakuin University
- Sagamihara, Japan
| | - Yoichi Kobayashi
- Department of Chemistry
- School of Science and Engineering
- Aoyama Gakuin University
- Sagamihara, Japan
| | - Jiro Abe
- Department of Chemistry
- School of Science and Engineering
- Aoyama Gakuin University
- Sagamihara, Japan
- CREST
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Yamashita H, Abe J. Pentaarylbiimidazole, PABI: an easily synthesized fast photochromic molecule with superior durability. Chem Commun (Camb) 2014; 50:8468-71. [DOI: 10.1039/c4cc03137g] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
We have developed a new type of fast photochromic imidazole dimer, pentaarylbiimidazole (PABI), which shows a few μs fast photochromism having the high fatigue resistance against light irradiation.
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Affiliation(s)
- Hiroaki Yamashita
- Department of Chemistry
- School of Science and Engineering
- Aoyama Gakuin University
- Sagamihara, Japan
| | - Jiro Abe
- Department of Chemistry
- School of Science and Engineering
- Aoyama Gakuin University
- Sagamihara, Japan
- CREST
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