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Khatun R, Majhi K, Sinha S. Detailed Photophysical Studies of Poly(9,9-di-(2-ethylhexyl)-9-H-fluorene-2,7-vinylene) in Liquid Media and Thin Films. APPLIED SPECTROSCOPY 2022; 76:1471-1481. [PMID: 36065942 DOI: 10.1177/00037028221126546] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
For the present work, solvent (toluene, o-xylene, chloroform, chlorobenzene, and 1,2-dichloroethane) and concentration-dependent (∼10-6-10-3 g ml-1) photophysical properties of poly(9,9-di-(2-ethylhexyl)-9-H-fluorene-2,7-vinylene) (PEFV) were investigated in detail in liquid media as well as thin films. Also, temperature-dependent (3-60 oC) fluorescence emission measurements of PEFV were conducted in liquid media. The steady-state and time-resolved data indicate the existence of weak interchain interaction in liquid media at high concentration. However, both ground-state aggregation and interchain interaction are present for PEFV in thin film. The interchain interaction plays a dominant role on the fluorescence emission of PEFV in thin film on the red side of the spectra.
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Affiliation(s)
- Rijia Khatun
- Integrated Science Education and Research Centre, 30190Visva-Bharati, Santiniketan, India
| | - Koushik Majhi
- Integrated Science Education and Research Centre, 30190Visva-Bharati, Santiniketan, India
| | - Subrata Sinha
- Integrated Science Education and Research Centre, 30190Visva-Bharati, Santiniketan, India
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2
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Asano MS, Morita T, Miwata T, Nomura K. Observation of Intramolecular Interaction in Fluorescent Star-Shaped Polymers: Evidence for Energy Hopping between Branch Chains. J Phys Chem B 2020; 124:11510-11518. [PMID: 33283508 DOI: 10.1021/acs.jpcb.0c09613] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Time-resolved fluorescence anisotropy measurements were performed on three-branched star-shaped polymers, based on precisely synthesized poly(9,9-di-n-octyl-fluorene vinylene)s containing C6F5 end groups. The star-shaped polymers showed identical fluorescence spectra, fluorescence lifetimes, and quantum yields to those of the reference single-chain oligomer. However, a rapid fluorescence anisotropy decay was observed in two kinds of star-shaped polymers, while such decay was not seen in the corresponding single-chain oligomer. On the basis of the analysis using an incoherent hopping model, the observed rapid anisotropy decay is attributable to energy hopping processes between branches within a single polymer species, and its rate was deduced to be ca.100 ps depending upon the core part.
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Affiliation(s)
- Motoko S Asano
- Division of Molecular Science, Graduate School of Science and Technology, Gunma University, Tenjin-cho, Kiryu, Gunma 376-8515, Japan
| | - Takatsugu Morita
- Division of Molecular Science, Graduate School of Science and Technology, Gunma University, Tenjin-cho, Kiryu, Gunma 376-8515, Japan
| | - Tomohiro Miwata
- Department of Chemistry, Graduate School of Science, Tokyo Metropolitan University, Minami-Ohsawa, Hachi-Ohji, Tokyo 192-0397, Japan
| | - Kotohiro Nomura
- Department of Chemistry, Graduate School of Science, Tokyo Metropolitan University, Minami-Ohsawa, Hachi-Ohji, Tokyo 192-0397, Japan
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3
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Asano MS, Hashimoto S, Shinozuka T, Fushimi Y, Nomura K. Interaction between the end groups and the main chain of conjugated polymers by time-resolved EPR and fluorescence spectroscopy. Mol Phys 2018. [DOI: 10.1080/00268976.2018.1510140] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- Motoko S. Asano
- Division of Molecular Science, Graduate School of Science and Technology, Gunma University, Gunma, Japan
| | - Sho Hashimoto
- Division of Molecular Science, Graduate School of Science and Technology, Gunma University, Gunma, Japan
| | - Takuya Shinozuka
- Division of Molecular Science, Graduate School of Science and Technology, Gunma University, Gunma, Japan
| | - Yasutaka Fushimi
- Department of Chemistry, Graduate School of Science, Tokyo Metropolitan University, Tokyo, Japan
| | - Kotohiro Nomura
- Department of Chemistry, Graduate School of Science, Tokyo Metropolitan University, Tokyo, Japan
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4
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Nomura K, Miwata T, Shinozuka T, Morita M, Geerts YH, Fujiki M, Asano MS. Terthiophene Functionalized Conjugated Triarm Polymers Containing Poly(fluorene-2,7-vinylene) Arms Having Different Cores-Synthesis and Their Unique Optical Properties. ACS OMEGA 2018; 3:5052-5063. [PMID: 31458719 PMCID: PMC6641954 DOI: 10.1021/acsomega.8b00676] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/07/2018] [Accepted: 04/24/2018] [Indexed: 06/10/2023]
Abstract
Optical properties of three types of terthiophene (3T) functionalized conjugated triarm (star-shaped) polymers consisting of poly(9,9-di-n-octyl-fluorene-2,7-vinylene) (PFV) arms and different [2,4,6-tri(biphenyl)benzene (TBP), 1,3,5-tri(benzyl)benzene (TBB), and triphenylamine (TPA)] cores, prepared by combined olefin metathesis with Wittig coupling, have been studied. Relative intensities [increases in the higher vibronic bands, (0, 1) fluorescence (FL)] of the fully conjugated TPA-core polymers, TPA(PFV-3T)3, in the fluorescence (FL) spectra in tetrahydrofuran (toluene) solution were higher than those in the other triarm polymers, TBP(PFV-3T)3, TBB(PFV-3T)3, whereas no significant differences were observed in their UV-vis spectra; notable temperature dependences were not observed in the UV-vis and FL spectra (at -5, 25, and 55 °C). Remarkable differences were not observed in the spectra in these polymer thin films, whereas λmax values red-shifted due to the formation of J-type aggregates. The observation for the time-resolved study well corresponds to results for the steady-state fluorescence measurements. The observed unique emission by the star-shaped (triarm) polymer containing the TPA core would be assumed to be due to a difference in nature of the core (higher coplanarity) compared to that of the others.
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Affiliation(s)
- Kotohiro Nomura
- Department
of Chemistry, Tokyo Metropolitan University, 1-1 Minami Osawa, Hachioji, Tokyo 192-0397, Japan
| | - Tomohiro Miwata
- Department
of Chemistry, Tokyo Metropolitan University, 1-1 Minami Osawa, Hachioji, Tokyo 192-0397, Japan
| | - Takuya Shinozuka
- Division
of Molecular Science, School of Science and Engineering, Gunma University, 1-5-1, Ten-jincho, Kiryu, Gunma 376-8515, Japan
| | - Munetsugu Morita
- Division
of Molecular Science, School of Science and Engineering, Gunma University, 1-5-1, Ten-jincho, Kiryu, Gunma 376-8515, Japan
| | - Yves H. Geerts
- Laboratoire
de Chimie des Polymères, Faculté des Sciences, Université Libre de Bruxelles (ULB), Boulevard du Triomphe, CP 206/01, 1050 Bruxelles, Belgium
| | - Michiya Fujiki
- Graduate
School of Materials Science, Nara Institute
of Science and Technology (NAIST), 8916-5 Takayama, Ikoma, Nara 630-0101, Japan
| | - Motoko S. Asano
- Division
of Molecular Science, School of Science and Engineering, Gunma University, 1-5-1, Ten-jincho, Kiryu, Gunma 376-8515, Japan
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Fujio T, Miwata T, Takase M, Sueki S, Nomura K. Facile, Efficient Synthesis of Star‐Shaped π‐Conjugated Systems by Combined Olefin Metathesis with Wittig‐type Coupling. J CHIN CHEM SOC-TAIP 2018. [DOI: 10.1002/jccs.201700058] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Takashi Fujio
- Department of Chemistry Tokyo Metropolitan University, 1‐1 Minami Osawa Hachioji, Tokyo 192‐0397 Japan
| | - Tomohiro Miwata
- Department of Chemistry Tokyo Metropolitan University, 1‐1 Minami Osawa Hachioji, Tokyo 192‐0397 Japan
| | - Masayoshi Takase
- Department of Chemistry Tokyo Metropolitan University, 1‐1 Minami Osawa Hachioji, Tokyo 192‐0397 Japan
- Department of Chemistry and Biology Ehime University Matsuyama, Ehime 790‐8577 Japan
| | - Shunsuke Sueki
- Department of Chemistry Tokyo Metropolitan University, 1‐1 Minami Osawa Hachioji, Tokyo 192‐0397 Japan
| | - Kotohiro Nomura
- Department of Chemistry Tokyo Metropolitan University, 1‐1 Minami Osawa Hachioji, Tokyo 192‐0397 Japan
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Chen Y, Abdellatif MM, Nomura K. Olefin metathesis polymerization: Some recent developments in the precise polymerizations for synthesis of advanced materials (by ROMP, ADMET). Tetrahedron 2018. [DOI: 10.1016/j.tet.2017.12.041] [Citation(s) in RCA: 70] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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7
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Asano MS, Yasuda Y, Kagota D, Haque T, Nomura K. Effects of terthiophene as the end-groups in triblock copolymers consisting of poly(fluorene vinylene) and oligo(phenylene vinylene): Time-resolved fluorescence and its anisotropy. J Photochem Photobiol A Chem 2017. [DOI: 10.1016/j.jphotochem.2017.08.039] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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8
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Miyashita T, Kunisawa M, Sueki S, Nomura K. Synthesis of Poly(arylene vinylene)s with Different End Groups by Combining Acyclic Diene Metathesis Polymerization with Wittig‐type Couplings. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201700466] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Tomonari Miyashita
- Department of Chemistry, Graduate School of Science and Engineering Tokyo Metropolitan University 1-1 Minami Osawa, Hachioji Tokyo 192-0376 Japan
| | - Mikiko Kunisawa
- Department of Chemistry, Graduate School of Science and Engineering Tokyo Metropolitan University 1-1 Minami Osawa, Hachioji Tokyo 192-0376 Japan
| | - Shunsuke Sueki
- Department of Chemistry, Graduate School of Science and Engineering Tokyo Metropolitan University 1-1 Minami Osawa, Hachioji Tokyo 192-0376 Japan
| | - Kotohiro Nomura
- Department of Chemistry, Graduate School of Science and Engineering Tokyo Metropolitan University 1-1 Minami Osawa, Hachioji Tokyo 192-0376 Japan
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9
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Miyashita T, Kunisawa M, Sueki S, Nomura K. Synthesis of Poly(arylene vinylene)s with Different End Groups by Combining Acyclic Diene Metathesis Polymerization with Wittig‐type Couplings. Angew Chem Int Ed Engl 2017; 56:5288-5293. [DOI: 10.1002/anie.201700466] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2017] [Revised: 03/03/2017] [Indexed: 01/08/2023]
Affiliation(s)
- Tomonari Miyashita
- Department of Chemistry, Graduate School of Science and Engineering Tokyo Metropolitan University 1-1 Minami Osawa, Hachioji Tokyo 192-0376 Japan
| | - Mikiko Kunisawa
- Department of Chemistry, Graduate School of Science and Engineering Tokyo Metropolitan University 1-1 Minami Osawa, Hachioji Tokyo 192-0376 Japan
| | - Shunsuke Sueki
- Department of Chemistry, Graduate School of Science and Engineering Tokyo Metropolitan University 1-1 Minami Osawa, Hachioji Tokyo 192-0376 Japan
| | - Kotohiro Nomura
- Department of Chemistry, Graduate School of Science and Engineering Tokyo Metropolitan University 1-1 Minami Osawa, Hachioji Tokyo 192-0376 Japan
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10
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Fushimi Y, Koinuma M, Yasuda Y, Nomura K, Asano MS. Effects of End-Groups on Photophysical Properties of Poly(9,9-di-n-octylfluorene-2,7-vinylene)s Linked with Metalloporphyrins: Synthesis and Time-Resolved Fluorescence Spectroscopy. Macromolecules 2017. [DOI: 10.1021/acs.macromol.7b00047] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Yasutaka Fushimi
- Department
of Chemistry, Faculty of Science and Engineering, Tokyo Metropolitan University, 1-1 minami
Osawa, Hachioji, Tokyo 192-0397, Japan
| | - Misaki Koinuma
- Division
of Molecular Science, Faculty of Science and Engineering, Gunma University, 1-5-1
Tenjin-cho, Kiryu, Gunma 376-8515, Japan
| | - Yoshifumi Yasuda
- Division
of Molecular Science, Faculty of Science and Engineering, Gunma University, 1-5-1
Tenjin-cho, Kiryu, Gunma 376-8515, Japan
| | - Kotohiro Nomura
- Department
of Chemistry, Faculty of Science and Engineering, Tokyo Metropolitan University, 1-1 minami
Osawa, Hachioji, Tokyo 192-0397, Japan
| | - Motoko S. Asano
- Division
of Molecular Science, Faculty of Science and Engineering, Gunma University, 1-5-1
Tenjin-cho, Kiryu, Gunma 376-8515, Japan
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11
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The chemistry of the carbon-transition metal double and triple bond: Annual survey covering the year 2015. Coord Chem Rev 2016. [DOI: 10.1016/j.ccr.2016.08.007] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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12
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Miyashita T, Nomura K. Catalytic One-Pot Synthesis of End-Functionalized Poly(9,9′-di-n-octylfluorenevinylene)s by Acyclic Diene Metathesis (ADMET) Polymerization Using Ruthenium–Carbene Catalysts. Macromolecules 2016. [DOI: 10.1021/acs.macromol.5b02287] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Tomonari Miyashita
- Department of Chemistry,
Graduate School of Science and Engineering, Tokyo Metropolitan University, 1-1 Minami
Osawa, Hachioji, Tokyo 192-0376, Japan
| | - Kotohiro Nomura
- Department of Chemistry,
Graduate School of Science and Engineering, Tokyo Metropolitan University, 1-1 Minami
Osawa, Hachioji, Tokyo 192-0376, Japan
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13
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Yorsaeng S, Kato Y, Tsutsumi K, Inagaki A, Kitiyanan B, Fujiki M, Nomura K. Synthesis of Well-Defined Oligo(2,5-dialkoxy-1,4-phenylene vinylene)s with Chiral End Groups: Unique Helical Aggregations Induced by the Chiral Chain Ends. Chemistry 2015; 21:16764-8. [DOI: 10.1002/chem.201503158] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2015] [Indexed: 12/31/2022]
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14
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Asano MS, Kagota D, Haque T, Koinuma M, Inagaki A, Nomura K. Time-Resolved Fluorescence Spectra in the End-Functionalized Conjugated Triblock Copolymers Consisting of Poly(fluorene vinylene) and Oligo(phenylene vinylene): Proposal of Dynamical Distortion in the Excited State. Macromolecules 2015. [DOI: 10.1021/acs.macromol.5b01084] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Motoko S. Asano
- Division
of Molecular Science, School of Science and Engineering, Gunma University, 1-5-1,
Ten-jincho, Kiryu, Gunma 376-8515, Japan
- Department
of Chemistry, Graduate School of Science and Engineering, Tokyo Metropolitan University, 1-1 minami Osawa, Hachioji, Tokyo 192-0376, Japan
- Advanced
Catalytic Transformation for Carbon Utilization (ACT-C), Japan Science and Technology Agency (JST), Saitama 332-0012, Japan
| | - Daichi Kagota
- Department
of Chemistry, Graduate School of Science and Engineering, Tokyo Metropolitan University, 1-1 minami Osawa, Hachioji, Tokyo 192-0376, Japan
| | - Tahmina Haque
- Department
of Chemistry, Graduate School of Science and Engineering, Tokyo Metropolitan University, 1-1 minami Osawa, Hachioji, Tokyo 192-0376, Japan
| | - Misaki Koinuma
- Division
of Molecular Science, School of Science and Engineering, Gunma University, 1-5-1,
Ten-jincho, Kiryu, Gunma 376-8515, Japan
| | - Akiko Inagaki
- Department
of Chemistry, Graduate School of Science and Engineering, Tokyo Metropolitan University, 1-1 minami Osawa, Hachioji, Tokyo 192-0376, Japan
| | - Kotohiro Nomura
- Department
of Chemistry, Graduate School of Science and Engineering, Tokyo Metropolitan University, 1-1 minami Osawa, Hachioji, Tokyo 192-0376, Japan
- Advanced
Catalytic Transformation for Carbon Utilization (ACT-C), Japan Science and Technology Agency (JST), Saitama 332-0012, Japan
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15
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Acyclic Diene Metathesis (ADMET) Polymerization for Precise Synthesis of Defect-Free Conjugated Polymers with Well-Defined Chain Ends. Catalysts 2015. [DOI: 10.3390/catal5020500] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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16
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Yorsaeng S, Tsutsumi K, Kitiyanan B, Nomura K. Synthesis and structural analysis of tungsten-carbonyl dimers bridged with oligo(2,5-dialkoxy-1,4-phenylene vinylene)s through pyridine coordination. Dalton Trans 2015; 44:16728-36. [DOI: 10.1039/c5dt02726h] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Synthesis, structural analysis and basic optical properties of tungsten carbonyl dimers bridged with oligo(2,5-dialkoxy-1,4-phenylene vinylene)s through coordination with pyridine have been explored.
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Affiliation(s)
- Sakkawet Yorsaeng
- Department of Chemistry
- Tokyo Metropolitan University
- Hachioji, Japan
- The Petroleum and Petrochemical College
- Chulalongkorn University
| | - Ken Tsutsumi
- Department of Chemistry
- Tokyo Metropolitan University
- Hachioji, Japan
| | - Boonyarach Kitiyanan
- The Petroleum and Petrochemical College
- Chulalongkorn University
- Bangkok 10330, Thailand
| | - Kotohiro Nomura
- Department of Chemistry
- Tokyo Metropolitan University
- Hachioji, Japan
- Advanced Catalytic Transformation for Carbon Utilization (ACT-C)
- Japan Science and Technology Agency (JST)
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