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Takemura K, Ohira K, Higashino T, Imato K, Ooyama Y. Synthesis, optical and electrochemical properties of (D–π) 2-type and (D–π) 2Ph-type fluorescent dyes. Beilstein J Org Chem 2022; 18:1047-1054. [PMID: 36105734 PMCID: PMC9443425 DOI: 10.3762/bjoc.18.106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Accepted: 08/12/2022] [Indexed: 12/02/2022] Open
Abstract
The (D–π)2-type fluorescent dye OTT-2 with two (diphenylamino)carbazole-thiophene units as D (electron-donating group)–π (π-conjugated bridge) moiety and the (D–π)2Ph-type fluorescent dye OTK-2 with the two D–π moieties connected through a phenyl ring were derived by oxidative homocoupling of a stannyl D–π unit and Stille coupling of a stannyl D–π unit with 1,3-diiodobenzene, respectively. Their optical and electrochemical properties were investigated by photoabsorption and fluorescence spectroscopy, time-resolved fluorescence spectroscopy, cyclic voltammetry (CV) and molecular orbital (MO) calculations. In toluene the photoabsorption and fluorescence maximum wavelengths (λmax,abs and λmax,fl) of OTT-2 appear in a longer wavelength region than those of OTK-2. The fluorescence quantum yield (Φfl) of OTT-2 is 0.41, which is higher than that (Φfl = 0.36) of OTK-2. In the solid state OTT-2 shows relatively intense fluorescence properties (Φfl-solid = 0.24 nm), compared with OTK-2 (Φfl-solid = 0.15 nm). CV results demonstrated that OTT-2 and OTK-2 exhibit a reversible oxidation wave. Based on photoabsorption, fluorescence spectroscopy and CV for the two dyes, it was found that the lowest unoccupied molecular orbital (LUMO) energy level of OTT-2 is lower than that of OTK-2, but OTT-2 and OTK-2 have comparable highest occupied molecular orbital (HOMO) energy levels. Consequently, this work reveals that compared to the (D–π)2Ph-type structure, the (D–π)2-type structure exhibits not only a bathochromic shift of the photoabsorption band, but also intense fluorescence emission both in solution and the solid state.
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Affiliation(s)
- Kosuke Takemura
- Applied Chemistry Program, Graduate School of Advanced Science and Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashi-Hiroshima 739-8527, Japan
| | - Kazuki Ohira
- Applied Chemistry Program, Graduate School of Advanced Science and Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashi-Hiroshima 739-8527, Japan
| | - Taiki Higashino
- Applied Chemistry Program, Graduate School of Advanced Science and Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashi-Hiroshima 739-8527, Japan
| | - Keiichi Imato
- Applied Chemistry Program, Graduate School of Advanced Science and Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashi-Hiroshima 739-8527, Japan
| | - Yousuke Ooyama
- Applied Chemistry Program, Graduate School of Advanced Science and Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashi-Hiroshima 739-8527, Japan
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2
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Takemura K, Imato K, Ooyama Y. Mechanofluorochromism of (D-π-) 2A-type azine-based fluorescent dyes. RSC Adv 2022; 12:13797-13809. [PMID: 35558838 PMCID: PMC9089242 DOI: 10.1039/d2ra02431d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2022] [Accepted: 04/28/2022] [Indexed: 12/28/2022] Open
Abstract
Bathochromic or hypsochromic shift-type mechanofluorochromism (b-MFC or h-MFC) was found for (D–π–)2A-type azine-based fluorescent dyes OUY-2, OUK-2, and OUJ-2 possessing intramolecular charge-transfer (ICT) characteristics from two (diphenylamino)carbazole–thiophene units as D (electron-donating group)–π (π-conjugated bridge) moieties to a pyridine, pyrazine, or triazine ring as A (electron-withdrawing group): grinding of the recrystallized dyes induced red or blue shifts of the fluorescent colors, that is, bathochromic or hypsochromic shifts of the fluorescence maximum wavelengths (λfl-solidmax). The degrees of MFC evaluated by the absolute value of differences (Δλfl-solidmax) in λfl-solidmax before and after grinding of the recrystallized dyes increased in the order of OUY-2 (+7 nm) < OUK-2 (−17 nm) < OUJ-2 (+45 nm), so that OUJ-2 exhibits obvious b-MFC, but OUK-2 exhibits h-MFC. X-ray powder diffraction (XRD) and differential scanning calorimetry (DSC) demonstrated that the recrystallized dyes were in the crystalline state but the ground dyes were in the amorphous state. When the ground solids were heated above their crystallization temperatures (Tc), the colors and fluorescent colors recovered to the original ones before grinding or converted to other ones, that is, heating the ground solids in the amorphous state induced the recrystallization to recover the original microcrystals or to form other microcrystals due to polymorph transformation. However, (D–π–)2Ph-type fluorescent dye OTK-2 having a phenyl group as a substitute for the azine rings exhibited non-obvious MFC. Molecular orbital (MO) calculations indicated that the values of the dipole moments (μg) in the ground state were 4.0 debye, 1.4 debye, 3.2 debye, and 2.9 debye for OTK-2, OUY-2, OUK-2, and OUJ-2, respectively. Consequently, on the basis of experimental results and MO calculations, we have demonstrated that the MFC of the (D–π–)2A-type azine-based fluorescent dyes is attributed to reversible switching between the crystalline state of the recrystallized dyes and the amorphous state of the ground dyes with changes in the intermolecular dipole–dipole and π–π interactions before and after grinding. Moreover, this work reveals that (D–π–)2A fluorescent dyes possessing dipole moments of ca. 3 debye as well as moderate or intense ICT characteristics make it possible to activate the MFC. Bathochromic or hypsochromic shift-type mechanofluorochromism (b-MFC of h-MFC) was found for (D–π–)2A-type azine-based fluorescent dyes: grinding of the recrystallized dyes induced bathochromic or hypsochromic shifts of the fluorescence bands.![]()
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Affiliation(s)
- Kosuke Takemura
- Applied Chemistry Program, Graduate School of Advanced Science and Engineering, Hiroshima University 1-4-1 Kagamiyama Higashi-Hiroshima 739-8527 Japan
| | - Keiichi Imato
- Applied Chemistry Program, Graduate School of Advanced Science and Engineering, Hiroshima University 1-4-1 Kagamiyama Higashi-Hiroshima 739-8527 Japan
| | - Yousuke Ooyama
- Applied Chemistry Program, Graduate School of Advanced Science and Engineering, Hiroshima University 1-4-1 Kagamiyama Higashi-Hiroshima 739-8527 Japan
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Kubota Y, Koide K, Mizuno Y, Nakazawa M, Inuzuka T, Funabiki K, Sato H, Matsui M. Synthesis and fluorescence properties of unsymmetrical 1,4-dihydropyrrolo[3,2- b]pyrrole dyes. NEW J CHEM 2022. [DOI: 10.1039/d1nj04663b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Despite being regioisomers, unsymmetrical 1,4-dihydropyrrolo[3,2-b]pyrroles 5 and 6 showed significantly different absorption and fluorescence properties due to the difference of the resonance structure between 5 and 6.
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Affiliation(s)
- Yasuhiro Kubota
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, 1-1 Yanagido, Gifu, 501-1193, Japan
| | - Kenta Koide
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, 1-1 Yanagido, Gifu, 501-1193, Japan
| | - Yuka Mizuno
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, 1-1 Yanagido, Gifu, 501-1193, Japan
| | - Masato Nakazawa
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, 1-1 Yanagido, Gifu, 501-1193, Japan
| | - Toshiyasu Inuzuka
- Life Science Research Center, Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan
| | - Kazumasa Funabiki
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, 1-1 Yanagido, Gifu, 501-1193, Japan
| | - Hiroyasu Sato
- Rigaku Corporation 3-9-12 Matsubara-Cho, Akishima, Tokyo 196-8666, Japan
| | - Masaki Matsui
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, 1-1 Yanagido, Gifu, 501-1193, Japan
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Obayashi K, Imato K, Aoyama S, Enoki T, Akiyama S, Ishida M, Suga S, Mitsudo K, Ooyama Y. Synthesis, optical and electrochemical properties of 4,4'-bibenzo[ c]thiophene derivatives. RSC Adv 2021; 11:18870-18880. [PMID: 35478650 PMCID: PMC9033462 DOI: 10.1039/d1ra01189h] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2021] [Accepted: 05/19/2021] [Indexed: 11/21/2022] Open
Abstract
We designed and synthesized unsubstituted 4,4′-bibenzo[c]thiophene 4,4′-BBT and its silyl-substituted derivatives 1,1′-Si-4,4′-BBT and 1,1′,3,3′-Si-4,4′-BBT with one or two tert-butyldimethylsilyl groups on each thiophene ring, as new π-building blocks in emitters, photosensitizers and semiconductors for organic optoelectronic devices. The characterization of 4,4′-BBT, 1,1′-Si-4,4′-BBT and 1,1′,3,3′-Si-4,4′-BBT was successfully determined by FTIR, 1H and 13C NMR measurements, high-resolution mass spectrometry (HRMS) analysis, photoabsorption and fluorescence spectroscopy, cyclic voltammetry (CV) and density functional theory (DFT) calculations. Moreover, a single-crystal X-ray structural analysis was successfully made for 1,1′-Si-4,4′-BBT and 1,1′,3,3′-Si-4,4′-BBT. The photoabsorption and fluorescence maxima (λabsmax and λflmax) of the three 4,4′-bibenzo[c]thiophene derivatives in toluene exhibit bathochromic shifts in the order of 4,4′-BBT (359 nm and 410 nm) < 1,1′-Si-4,4′-BBT (366 nm and 420 nm) < 1,1′,3,3′-Si-4,4′-BBT (371 nm and 451 nm). The HOMO and LUMO energy levels rise in the order of 4,4′-BBT (−5.55 eV and −2.39 eV) < 1,1′-Si-4,4′-BBT (−5.45 eV and −2.34 eV) < 1,1′,3,3′-Si-4,4′-BBT (−5.34 eV and −2.30 eV), but the rise of the HOMO energy level is larger than that of the LUMO energy level, resulting in the bathochromic shift of the photoabsorption band from 4,4′-BBT to 1,1′,3,3′-Si-4,4′-BBT. The fluorescence quantum yields (Φfl) of 4,4′-BBT, 1,1′-Si-4,4′-BBT and 1,1′,3,3′-Si-4,4′-BBT in toluene are 0.41, 0.41 and 0.36, respectively. It is worth mentioning that in the solid state 1,1′-Si-4,4′-BBT and 1,1′,3,3′-Si-4,4′-BBT show relatively high Φfl-solid values of 0.22 and 0.25, respectively, whereas 4,4′-BBT exhibits poor solid-state fluorescence properties (Φfl-solid < 0.02). This work provides an efficient synthetic method for the 4,4′-bibenzo[c]thiophene derivatives and their photophysical properties in the solution and solid state, electrochemical properties and X-ray crystal structures. 4,4′-Bibenzo[c]thiophene 4,4′-BBT and its silyl-substituted derivatives 1,1′-Si-4,4′-BBT and 1,1′,3,3′-Si-4,4′-BBT have been designed and developed as new π-building blocks.![]()
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Affiliation(s)
- Kotaro Obayashi
- Department of Applied Chemistry, Graduate School of Engineering, Hiroshima University 1-4-1 Kagamiyama Higashi-Hiroshima 739-8527 Japan +81 82-424-5494
| | - Keiichi Imato
- Department of Applied Chemistry, Graduate School of Engineering, Hiroshima University 1-4-1 Kagamiyama Higashi-Hiroshima 739-8527 Japan +81 82-424-5494
| | - Satoshi Aoyama
- Department of Applied Chemistry, Graduate School of Engineering, Hiroshima University 1-4-1 Kagamiyama Higashi-Hiroshima 739-8527 Japan +81 82-424-5494
| | - Toshiaki Enoki
- Department of Applied Chemistry, Graduate School of Engineering, Hiroshima University 1-4-1 Kagamiyama Higashi-Hiroshima 739-8527 Japan +81 82-424-5494
| | - Seiji Akiyama
- Science & Innovation Center, Mitsubishi Chemical Corporation 1000, Kamoshida-cho, Aoba-ku, Yokohama-shi Kanagawa 227-8502 Japan
| | - Mio Ishida
- Science & Innovation Center, Mitsubishi Chemical Corporation 1000, Kamoshida-cho, Aoba-ku, Yokohama-shi Kanagawa 227-8502 Japan
| | - Seiji Suga
- Division of Applied Chemistry, Graduate School of Natural Science and Technology, Okayama University 3-1-1 Tsushima-naka, Kita-ku Okayama 700-8530 Japan
| | - Koichi Mitsudo
- Division of Applied Chemistry, Graduate School of Natural Science and Technology, Okayama University 3-1-1 Tsushima-naka, Kita-ku Okayama 700-8530 Japan
| | - Yousuke Ooyama
- Department of Applied Chemistry, Graduate School of Engineering, Hiroshima University 1-4-1 Kagamiyama Higashi-Hiroshima 739-8527 Japan +81 82-424-5494
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Obayashi K, Miho S, Yasui M, Imato K, Akiyama S, Ishida M, Ooyama Y. Development of 4,4′-bibenzo[ c]thiophene fluorophores with substituents on the thiophene rings. NEW J CHEM 2021. [DOI: 10.1039/d1nj03153h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We provide a facile synthetic method of 1,1′-disubstituted 4,4′-bibenzo[c]thiophene fluorescent dyes from 1,1′,3,3′-tetrahydro-[4,4′-bibenzo[c]thiophene] 2,2′-dioxide.
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Affiliation(s)
- Kotaro Obayashi
- Department of Applied Chemistry, Graduate School of Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashi-Hiroshima 739-8527, Japan
| | - Saori Miho
- Department of Applied Chemistry, Graduate School of Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashi-Hiroshima 739-8527, Japan
| | - Masataka Yasui
- Department of Applied Chemistry, Graduate School of Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashi-Hiroshima 739-8527, Japan
| | - Keiichi Imato
- Department of Applied Chemistry, Graduate School of Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashi-Hiroshima 739-8527, Japan
| | - Seiji Akiyama
- Science & Innovation Center, Mitsubishi Chemical Corporation, 1000 Kamoshida-cho, Aoba-ku, Yokohama-shi, Kanagawa 227-8502, Japan
| | - Mio Ishida
- Science & Innovation Center, Mitsubishi Chemical Corporation, 1000 Kamoshida-cho, Aoba-ku, Yokohama-shi, Kanagawa 227-8502, Japan
| | - Yousuke Ooyama
- Department of Applied Chemistry, Graduate School of Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashi-Hiroshima 739-8527, Japan
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6
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Feng X, Becke AD, Johnson ER. Computational modeling of piezochromism in molecular crystals. J Chem Phys 2020; 152:234106. [DOI: 10.1063/5.0011515] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Affiliation(s)
- Xibo Feng
- Department of Chemistry, Dalhousie University, 6274 Coburg Road, P.O. Box 15000, Halifax, Nova Scotia B3H 4R2, Canada
| | - Axel D. Becke
- Department of Chemistry, Dalhousie University, 6274 Coburg Road, P.O. Box 15000, Halifax, Nova Scotia B3H 4R2, Canada
| | - Erin R. Johnson
- Department of Chemistry, Dalhousie University, 6274 Coburg Road, P.O. Box 15000, Halifax, Nova Scotia B3H 4R2, Canada
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Imato K, Enoki T, Uenaka K, Ooyama Y. Synthesis, photophysical and electrochemical properties of pyridine, pyrazine and triazine-based (D-π-) 2A fluorescent dyes. Beilstein J Org Chem 2019; 15:1712-1721. [PMID: 31435445 PMCID: PMC6664397 DOI: 10.3762/bjoc.15.167] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2019] [Accepted: 07/10/2019] [Indexed: 12/25/2022] Open
Abstract
The donor-acceptor-π-conjugated (D-π-)2A fluorescent dyes OUY-2, OUK-2 and OUJ-2 with two (diphenylamino)carbazole thiophene units as D (electron-donating group)-π (π-conjugated bridge) moiety and a pyridine, pyrazine or triazine ring as electron-withdrawing group (electron-accepting group, A) have been designed and synthesized. The photophysical and electrochemical properties of the three dyes were investigated by photoabsorption and fluorescence spectroscopy, Lippert-Mataga plots, cyclic voltammetry and density functional theory calculations. The photoabsorption maximum (λmax,abs) and the fluorescence maximum (λmax,fl) for the intramolecular charge-transfer characteristic band of the (D-π-)2A fluorescent dyes show bathochromic shifts in the order of OUY-2 < OUK-2 < OUJ-2. Moreover, the photoabsorption bands of the (D-π-)2A fluorescent dyes are nearly independent of solvent polarity, while the fluorescence bands showed bathochromic shifts with increasing solvent polarity (i.e., positive fluorescence solvatochromism). The Lippert-Mataga plots for OUY-2, OUK-2 and OUJ-2 indicate that the Δμ (= μe - μg) value, which is the difference in the dipole moment of the dye between the excited (μe) and the ground (μg) states, increases in the order of OUY-2 < OUK-2 < OUJ-2. Therefore, the fact explains our findings that OUJ-2 shows large bathochromic shifts of the fluorescence maxima in polar solvents, as well as the Stokes shift values of OUJ-2 in polar solvents are much larger than those in nonpolar solvents. The cyclic voltammetry of OUY-2, OUK-2 and OUJ-2 demonstrated that there is little difference in the HOMO energy level among the three dyes, but the LUMO energy levels decrease in the order of OUY-2 > OUK-2 > OUJ-2. Consequently, this work reveals that for the (D-π-)2A fluorescent dyes OUY-2, OUK-2 and OUJ-2 the bathochromic shifts of λmax,abs and λmax,fl and the lowering of the LUMO energy level are dependent on the electron-withdrawing ability of the azine ring, which increases in the order of OUY-2 < OUK-2 < OUJ-2.
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Affiliation(s)
- Keiichi Imato
- Department of Applied Chemistry, Graduate School of Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashi-Hiroshima 739-8527, Japan
| | - Toshiaki Enoki
- Department of Applied Chemistry, Graduate School of Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashi-Hiroshima 739-8527, Japan
| | - Koji Uenaka
- Department of Applied Chemistry, Graduate School of Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashi-Hiroshima 739-8527, Japan
| | - Yousuke Ooyama
- Department of Applied Chemistry, Graduate School of Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashi-Hiroshima 739-8527, Japan
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8
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Fujikawa T, Uehara T, Yamaji M, Kanetomo T, Ishida T, Maki S, Hirano T. Structure-fluorescence relationship of push-pull 2-phenylbenzothiazole derivatives designed based on the firefly light-emitter. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2018.02.075] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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9
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Deshapande N, Pujar GH, Sunagar MG, Gaonkar S, Belavagi NS, Inamdar SR, Bathula C, Khazi IAM. Synthesis and Optoelectronic Exploration of Highly Conjugated 1,3,4-Oxadiazole Containing Donor-π-Acceptor Chromophores. ChemistrySelect 2017. [DOI: 10.1002/slct.201700048] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Narahari Deshapande
- CPEPA; Department of Chemistry; Karnatak University; Dharwad 580003, Karnataka India
| | - G. H. Pujar
- CPEPA; Department of Physics; Karnatak University; Dharwad 580003, Karnataka India
| | - Manjunath G. Sunagar
- CPEPA; Department of Chemistry; Karnatak University; Dharwad 580003, Karnataka India
| | - Supreet Gaonkar
- CPEPA; Department of Chemistry; Karnatak University; Dharwad 580003, Karnataka India
| | | | - S. R. Inamdar
- CPEPA; Department of Physics; Karnatak University; Dharwad 580003, Karnataka India
| | - Chinna Bathula
- Department of Chemistry; Research Institute for Natural Sciences and Institute of Nanoscience and Technology; Hanyang University; Seoul 133-791 Republic of Korea
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10
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Fang W, Zhang Y, Zhang G, Kong L, Yang L, Yang J. Multi-stimuli-responsive fluorescence of a highly emissive difluoroboron complex in both solution and solid states. CrystEngComm 2017. [DOI: 10.1039/c6ce02376b] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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11
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Hachiya S, Hashizume D, Ikeda H, Yamaji M, Maki S, Niwa H, Hirano T. Spectroscopic properties of BF2 complexes of N-(5-phenyl-2-pyrazinyl)pivalamides exhibiting fluorescence in solution and solid state. J Photochem Photobiol A Chem 2016. [DOI: 10.1016/j.jphotochem.2015.10.014] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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12
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Sato T, Tajima N, Ueno H, Harada T, Fujiki M, Imai Y. Binaphthyl luminophores with triphenylsilyl groups: sign inversion of circularly polarized luminescence and circular dichroism. Tetrahedron 2016. [DOI: 10.1016/j.tet.2016.09.041] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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13
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Shimada M, Tsuchiya M, Sakamoto R, Yamanoi Y, Nishibori E, Sugimoto K, Nishihara H. Bright Solid‐State Emission of Disilane‐Bridged Donor–Acceptor–Donor and Acceptor–Donor–Acceptor Chromophores. Angew Chem Int Ed Engl 2016; 55:3022-6. [DOI: 10.1002/anie.201509380] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2015] [Revised: 12/09/2015] [Indexed: 11/06/2022]
Affiliation(s)
- Masaki Shimada
- Department of Chemistry School of Science The University of Tokyo 7-3-1 Hongo, Bunkyo-ku Tokyo 113-0033 Japan
| | - Mizuho Tsuchiya
- Department of Chemistry School of Science The University of Tokyo 7-3-1 Hongo, Bunkyo-ku Tokyo 113-0033 Japan
| | - Ryota Sakamoto
- Department of Chemistry School of Science The University of Tokyo 7-3-1 Hongo, Bunkyo-ku Tokyo 113-0033 Japan
| | - Yoshinori Yamanoi
- Department of Chemistry School of Science The University of Tokyo 7-3-1 Hongo, Bunkyo-ku Tokyo 113-0033 Japan
| | - Eiji Nishibori
- Division of Physics Faculty of Pure and Applied Sciences Tsukuba Research Center for Interdisciplinary Materials Science (TIMS) & Center for Integrated Research in Fundamental Science and Engineering (CiRfSE) University of Tsukuba 1-1-1 Tennodai Tsukuba Ibaraki 305–8571 Japan
| | - Kunihisa Sugimoto
- Japan Synchrotron Radiation Research Institute (JASRI) 1-1-1 Koto, Sayo-cho Sayo-gun Hyogo 679–5198 Japan
| | - Hiroshi Nishihara
- Department of Chemistry School of Science The University of Tokyo 7-3-1 Hongo, Bunkyo-ku Tokyo 113-0033 Japan
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14
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Shimada M, Tsuchiya M, Sakamoto R, Yamanoi Y, Nishibori E, Sugimoto K, Nishihara H. Bright Solid‐State Emission of Disilane‐Bridged Donor–Acceptor–Donor and Acceptor–Donor–Acceptor Chromophores. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201509380] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Masaki Shimada
- Department of Chemistry School of Science The University of Tokyo 7-3-1 Hongo, Bunkyo-ku Tokyo 113-0033 Japan
| | - Mizuho Tsuchiya
- Department of Chemistry School of Science The University of Tokyo 7-3-1 Hongo, Bunkyo-ku Tokyo 113-0033 Japan
| | - Ryota Sakamoto
- Department of Chemistry School of Science The University of Tokyo 7-3-1 Hongo, Bunkyo-ku Tokyo 113-0033 Japan
| | - Yoshinori Yamanoi
- Department of Chemistry School of Science The University of Tokyo 7-3-1 Hongo, Bunkyo-ku Tokyo 113-0033 Japan
| | - Eiji Nishibori
- Division of Physics Faculty of Pure and Applied Sciences Tsukuba Research Center for Interdisciplinary Materials Science (TIMS) & Center for Integrated Research in Fundamental Science and Engineering (CiRfSE) University of Tsukuba 1-1-1 Tennodai Tsukuba Ibaraki 305–8571 Japan
| | - Kunihisa Sugimoto
- Japan Synchrotron Radiation Research Institute (JASRI) 1-1-1 Koto, Sayo-cho Sayo-gun Hyogo 679–5198 Japan
| | - Hiroshi Nishihara
- Department of Chemistry School of Science The University of Tokyo 7-3-1 Hongo, Bunkyo-ku Tokyo 113-0033 Japan
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15
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Kubota Y, Kasatani K, Niwa T, Sato H, Funabiki K, Matsui M. Synthesis and Fluorescence Properties of Pyrimidine-Based Diboron Complexes with Donor-π-Acceptor Structures. Chemistry 2015; 22:1816-24. [DOI: 10.1002/chem.201503625] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2015] [Indexed: 12/20/2022]
Affiliation(s)
- Yasuhiro Kubota
- Department of Chemistry and Biomolecular Science; Faculty of Engineering; Gifu University; 1-1 Yanagido Gifu 501-1193 Japan
| | - Kouhei Kasatani
- Department of Chemistry and Biomolecular Science; Faculty of Engineering; Gifu University; 1-1 Yanagido Gifu 501-1193 Japan
| | - Takahiro Niwa
- Department of Chemistry and Biomolecular Science; Faculty of Engineering; Gifu University; 1-1 Yanagido Gifu 501-1193 Japan
| | - Hiroyasu Sato
- Applied Technology Center; Rigaku Corporation; 3-9-12 Matsubara-Cho Akishima, Tokyo 196-8666 Japan
| | - Kazumasa Funabiki
- Department of Chemistry and Biomolecular Science; Faculty of Engineering; Gifu University; 1-1 Yanagido Gifu 501-1193 Japan
| | - Masaki Matsui
- Department of Chemistry and Biomolecular Science; Faculty of Engineering; Gifu University; 1-1 Yanagido Gifu 501-1193 Japan
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16
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Kumbhar HS, Gadilohar BL, Shankarling GS. Synthesis and spectroscopic study of highly fluorescent β-enaminone based boron complexes. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2015; 146:80-87. [PMID: 25813165 DOI: 10.1016/j.saa.2015.03.044] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2014] [Revised: 02/28/2015] [Accepted: 03/02/2015] [Indexed: 06/04/2023]
Abstract
The newly synthesized 1, 1, 2-trimethyl-1H benzo[e]indoline based β-enaminone boron complexes exhibited the intense fluorescence (Fmax=522-547 nm) in solution as well as in solid state (F max=570-586 nm). These complexes exhibited large stoke shift, excellent thermal and photo stability when compared to the boron dipyrromethene (BODIPY) colorants. Optimized geometry and orbital distribution in ground states were computed by employing density functional theory (DFT). The cyclic voltammetry study revealed the better electron transport ability of these molecules than current electroluminescent materials like tris(8-hydroxyquinoli-nato)-aluminium (Alq3) and BODIPY, which can find application in electroluminescent devices.
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Affiliation(s)
- Haribhau S Kumbhar
- Dyestuff Technology Department, Institute of Chemical Technology, Matunga, Mumbai 400 019, India
| | - Balu L Gadilohar
- Dyestuff Technology Department, Institute of Chemical Technology, Matunga, Mumbai 400 019, India
| | - Ganapati S Shankarling
- Dyestuff Technology Department, Institute of Chemical Technology, Matunga, Mumbai 400 019, India.
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17
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Isatin-phenylhydrazone dyes and boron complexes with large Stokes shifts: synthesis and solid-state fluorescence characteristics. Tetrahedron 2015. [DOI: 10.1016/j.tet.2015.03.115] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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18
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Bartelmess J, Baldrighi M, Nardone V, Parisini E, Buck D, Echegoyen L, Giordani S. Synthesis and Characterization of Far-Red/NIR-Fluorescent BODIPY Dyes, Solid-State Fluorescence, and Application as Fluorescent Tags Attached to Carbon Nano-onions. Chemistry 2015; 21:9727-32. [PMID: 26015289 DOI: 10.1002/chem.201500877] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2015] [Indexed: 11/11/2022]
Abstract
A series of π-extended distyryl-substituted boron dipyrromethene (BODIPY) derivatives with intense far-red/near-infrared (NIR) fluorescence was synthesized and characterized, with a view to enhance the dye's performance for fluorescence labeling. An enhanced brightness was achieved by the introduction of two methyl substituents in the meso positions on the phenyl group of the BODIPY molecule; these substituents resulted in increased structural rigidity. Solid-state fluorescence was observed for one of the distyryl-substituted BODIPY derivatives. The introduction of a terminal bromo substituent allows for the subsequent immobilization of the BODIPY fluorophore on the surface of carbon nano-onions (CNOs), which leads to potential imaging agents for biological and biomedical applications. The far-red/NIR-fluorescent CNO nanoparticles were characterized by absorption, fluorescence, and Raman spectroscopies, as well as by thermogravimetric analysis, dynamic light scattering, high-resolution transmission electron microscopy, and confocal microscopy.
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Affiliation(s)
- Juergen Bartelmess
- Istituto Italiano di Tecnologia (IIT), Nano Carbon Materials, Via Morego 30, 16163 Genova (Italy)
| | - Michele Baldrighi
- Istituto Italiano di Tecnologia (IIT), Nano Carbon Materials, Via Morego 30, 16163 Genova (Italy)
| | - Valentina Nardone
- Istituto Italiano di Tecnologia (IIT), Center for Nano Science and Technology, Via G. Pascoli 70/3, 20133 Milano (Italy).,Department of Chemistry, Material and Chemical Engineering, Politecnico di Milano, Piazza Leonardo Da Vinci, 20133 Milano (Italy)
| | - Emilio Parisini
- Istituto Italiano di Tecnologia (IIT), Center for Nano Science and Technology, Via G. Pascoli 70/3, 20133 Milano (Italy)
| | - David Buck
- Department of Chemistry, University of Texas at El Paso, 500 W. University Ave., El Paso, TX 79968 (USA)
| | - Luis Echegoyen
- Department of Chemistry, University of Texas at El Paso, 500 W. University Ave., El Paso, TX 79968 (USA)
| | - Silvia Giordani
- Istituto Italiano di Tecnologia (IIT), Nano Carbon Materials, Via Morego 30, 16163 Genova (Italy).
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19
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Kubota Y, Kasatani K, Takai H, Funabiki K, Matsui M. Strategy to enhance solid-state fluorescence and aggregation-induced emission enhancement effect in pyrimidine boron complexes. Dalton Trans 2015; 44:3326-41. [PMID: 25599172 DOI: 10.1039/c4dt03318c] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
The synthesis and the solution/solid-state fluorescence properties of pyrimidine-based monoboron complexes differing in terms of the substituents [either two fluorine atoms (BF2 complex) or two phenyl groups (BPh2 complex)] on the boron atom are reported herein. Unrestricted C-Ar intramolecular rotation in the non-, trifluoromethyl-, and cyano-substituted derivatives resulted in negligible fluorescence in solution. On the other hand, methoxy- and dimethylamino-substituted analogues caused the restriction of the C-Ar intramolecular rotation and consequently resulted in relatively strong fluorescence in solution. The non-, trifluoromethyl-, and cyano-substituted derivatives showed a pronounced aggregation-induced emission enhancement effect. Dimethylamino-substituted derivatives exhibited solvatochromism in the fluorescence spectra. Substitution with BPh2 effectively enhanced the fluorescence quantum yield compared to the corresponding BF2 complexes in the solid-state.
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Affiliation(s)
- Yasuhiro Kubota
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan.
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20
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Achelle S, Barsella A, Caro B, Robin-le Guen F. Donor–linker–acceptor (D–π–A) diazine chromophores with extended π-conjugated cores: synthesis, photophysical and second order nonlinear optical properties. RSC Adv 2015. [DOI: 10.1039/c5ra05736a] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
The synthesis, photophysical properties and second order non-linear optical response of a series of push–pull pyrimidine and quinoxaline chromophores with extended π-conjugated cores are reported.
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Affiliation(s)
- Sylvain Achelle
- Institut des Sciences Chimiques de Rennes UMR CNRS 6226
- IUT de Lannion
- F22302 Lannion Cedex
- France
| | - Alberto Barsella
- Département d'Optique ultra-rapide et Nanophotonique
- IPCMS-CNRS
- 67034 Strasbourg Cedex 2
- France
| | - Bertrand Caro
- Institut des Sciences Chimiques de Rennes UMR CNRS 6226
- IUT de Lannion
- F22302 Lannion Cedex
- France
| | - Françoise Robin-le Guen
- Institut des Sciences Chimiques de Rennes UMR CNRS 6226
- IUT de Lannion
- F22302 Lannion Cedex
- France
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21
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Aggarwal K, Khurana JM. X-ray diffraction, spectroscopic characterization and quantum chemical calculations by DFT and HF of novel 2-hydroxy-12-(4-hydroxyphenyl)-9,9-dimethyl-9,10-dihydro-8 H -benzo[ a ]xanthen-11(12 H )-one. J Mol Struct 2015. [DOI: 10.1016/j.molstruc.2014.09.020] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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22
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N-propylpiperazine sulfonic acid immobilized on Fe3O4 magnetic silica nanoparticles: an efficient and heterogeneous catalyst for the one-pot synthesis of 9H-xanthene or methylenediphenol derivatives under solvent-free conditions. REACTION KINETICS MECHANISMS AND CATALYSIS 2014. [DOI: 10.1007/s11144-014-0686-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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23
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Ooyama Y, Hagiwara Y, Oda Y, Fukuoka H, Ohshita J. BODIPY dye possessing solid-state red fluorescence and green metallic luster properties in both crystalline and amorphous states. RSC Adv 2014. [DOI: 10.1039/c3ra45785k] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
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24
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Hirayama M, Kobayashi Y, Tanaka Y, Sato T, Harada T, Tajima N, Kuroda R, Fujiki M, Imai Y. Chiral Optical Properties of Phenyloxazoline Derivatives that Appear Only in the Solid State. European J Org Chem 2013. [DOI: 10.1002/ejoc.201301379] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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25
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Methylenepyran based dipolar and quadrupolar dyes: synthesis, electrochemical and photochemical properties. Tetrahedron 2013. [DOI: 10.1016/j.tet.2013.07.066] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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26
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Kubota Y, Ozaki Y, Funabiki K, Matsui M. Synthesis and Fluorescence Properties of Pyrimidine Mono- and Bisboron Complexes. J Org Chem 2013; 78:7058-67. [DOI: 10.1021/jo400879g] [Citation(s) in RCA: 87] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Yasuhiro Kubota
- Department of Chemistry and Biomolecular
Science, Faculty
of Engineering, Gifu University, 1-1 Yanagido,
Gifu 501-1193, Japan
| | - Yousuke Ozaki
- Department of Chemistry and Biomolecular
Science, Faculty
of Engineering, Gifu University, 1-1 Yanagido,
Gifu 501-1193, Japan
| | - Kazumasa Funabiki
- Department of Chemistry and Biomolecular
Science, Faculty
of Engineering, Gifu University, 1-1 Yanagido,
Gifu 501-1193, Japan
| | - Masaki Matsui
- Department of Chemistry and Biomolecular
Science, Faculty
of Engineering, Gifu University, 1-1 Yanagido,
Gifu 501-1193, Japan
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27
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Ooyama Y, Oda Y, Hagiwara Y, Fukuoka H, Miyazaki E, Mizumo T, Ohshita J. Solid-state fluorescence properties and mechanofluorochromism of D–π-A pyridinium dyes bearing various counter anions. Tetrahedron 2013. [DOI: 10.1016/j.tet.2013.05.047] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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28
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Taniguchi N, Shimomaki R, Amako T, Sato T, Tokutome H, Tajima N, Kuroda R, Fujiki M, Imai Y. Preparation of a Spontaneously Resolved Chiral Fluorescent System Containing 4-(2-Arylethynyl)benzoic Acid. ASIAN J ORG CHEM 2013. [DOI: 10.1002/ajoc.201300084] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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29
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A comparison of circularly polarized luminescence (CPL) and circular dichroism (CD) characteristics of four axially chiral binaphthyl-2,2′-diyl hydrogen phosphate derivatives. Tetrahedron 2013. [DOI: 10.1016/j.tet.2013.01.084] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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30
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Liu Q, Yin B, Yang T, Yang Y, Shen Z, Yao P, Li F. A General Strategy for Biocompatible, High-Effective Upconversion Nanocapsules Based on Triplet–Triplet Annihilation. J Am Chem Soc 2013; 135:5029-37. [DOI: 10.1021/ja3104268] [Citation(s) in RCA: 243] [Impact Index Per Article: 22.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Qian Liu
- Department of Chemistry & The State Key Laboratory of Molecular Engineering of Polymers & Institute of Biomedicine Science, Fudan University, Shanghai, 200433, P. R. China
| | - Baoru Yin
- The State Key Laboratory of Molecular Engineering of Polymers & Department of Macromolecular Science, Fudan University, Shanghai, 200433, P. R. China
| | - Tianshe Yang
- Department of Chemistry & The State Key Laboratory of Molecular Engineering of Polymers & Institute of Biomedicine Science, Fudan University, Shanghai, 200433, P. R. China
| | - Yongchao Yang
- School of Chemistry
and Chemical
Engineering, Nanjing University, Nanjing
210093, P. R. China
| | - Zhen Shen
- School of Chemistry
and Chemical
Engineering, Nanjing University, Nanjing
210093, P. R. China
| | - Ping Yao
- The State Key Laboratory of Molecular Engineering of Polymers & Department of Macromolecular Science, Fudan University, Shanghai, 200433, P. R. China
| | - Fuyou Li
- Department of Chemistry & The State Key Laboratory of Molecular Engineering of Polymers & Institute of Biomedicine Science, Fudan University, Shanghai, 200433, P. R. China
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31
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Tirkeş S, Mersini J, Öztaş Z, Algi MP, Algi F, Cihaner A. A new processable and fluorescent polydithienylpyrrole electrochrome with pyrene appendages. Electrochim Acta 2013. [DOI: 10.1016/j.electacta.2012.12.023] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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32
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York M, Edenharter A. A Two-Stage Continuous-Flow Synthesis of Spirooxazine Photochromic Dyes. Aust J Chem 2013. [DOI: 10.1071/ch12435] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
A continuous-flow process for the synthesis of several known and previously unreported spirooxazine photochromic dyes is reported. The process proceeds via an initial copper catalysed addition of substituted anilines to naphthalene-1,2-dione. This is followed by reaction with 1,3,3-trimethyl-2-methyleneindoline in the presence of hydroxylamine hydrochloride to give the desired spirooxazine products. The photochromic dyes were then cast into lenses to allow a preliminary evaluation of their properties.
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33
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Singh RS, Yadav M, Gupta RK, Pandey R, Pandey DS. Luminescent N,O-chelated chroman-BF2complexes: structural variants of BODIPY. Dalton Trans 2013; 42:1696-707. [DOI: 10.1039/c2dt31820b] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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34
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Kubota Y, Tanaka S, Funabiki K, Matsui M. Synthesis and Fluorescence Properties of Thiazole–Boron Complexes Bearing a β-Ketoiminate Ligand. Org Lett 2012; 14:4682-5. [DOI: 10.1021/ol302179r] [Citation(s) in RCA: 126] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Yasuhiro Kubota
- Department of Materials Science and Technology, Faculty of Engineering, Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan
| | - Syunki Tanaka
- Department of Materials Science and Technology, Faculty of Engineering, Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan
| | - Kazumasa Funabiki
- Department of Materials Science and Technology, Faculty of Engineering, Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan
| | - Masaki Matsui
- Department of Materials Science and Technology, Faculty of Engineering, Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan
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35
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Ooyama Y, Sugiyama T, Oda Y, Hagiwara Y, Yamaguchi N, Miyazaki E, Fukuoka H, Mizumo T, Harima Y, Ohshita J. Synthesis of Carbazole-Type D-π-A Fluorescent Dyes Possessing Solid-State Red Fluorescence Properties. European J Org Chem 2012. [DOI: 10.1002/ejoc.201200643] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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36
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Kitamura C. Tuning the Solid-State Optical Properties of Tetracene Derivatives by Modification of the Alkyl Side-Chains: Crystallochromy and the Highest Fluorescence Quantum Yield in Acenes Larger than Anthracene. CHEM REC 2012; 12:506-14. [DOI: 10.1002/tcr.201200003] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2012] [Indexed: 11/07/2022]
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37
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Lu H, Wang Q, Gai L, Li Z, Deng Y, Xiao X, Lai G, Shen Z. Tuning the Solid-State Luminescence of BODIPY Derivatives with Bulky Arylsilyl Groups: Synthesis and Spectroscopic Properties. Chemistry 2012; 18:7852-61. [DOI: 10.1002/chem.201200169] [Citation(s) in RCA: 122] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2012] [Revised: 03/16/2012] [Indexed: 11/11/2022]
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38
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17,17-Dialkyltetrabenzo[a,c,g,i]fluorenes with extremely high solid-state fluorescent quantum yields: relationship between crystal structure and fluorescent properties. Tetrahedron 2012. [DOI: 10.1016/j.tet.2011.12.069] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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39
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Photophysical properties and photostability of novel unsymmetric polycyclicphenazine-type D-π-A fluorescent dyes and the dye-doped films. J Photochem Photobiol A Chem 2012. [DOI: 10.1016/j.jphotochem.2011.12.009] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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40
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Gai L, Lu H, Zou B, Lai G, Shen Z, Li Z. Synthesis and spectroscopic properties of bodipy dimers with effective solid-state emission. RSC Adv 2012. [DOI: 10.1039/c2ra21040a] [Citation(s) in RCA: 75] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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41
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Kobayashi Y, Kinuta T, Sato T, Harada T, Kuroda R, Matsubara Y, Imai Y. Polymorphic supramolecular organic fluorophore composed of 2-naphthalenecarboxylic acid and benzylamine. CrystEngComm 2012. [DOI: 10.1039/c1ce06262j] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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42
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Ooyama Y, Yamaguchi N, Inoue S, Nagano T, Miyazaki E, Fukuoka H, Imae I, Komaguchi K, Ohshita J, Harima Y. Mechanofluorochromism of carbazole-type D–π–A fluorescent dyes. Tetrahedron 2012. [DOI: 10.1016/j.tet.2011.11.012] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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43
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Anthony SP. Polymorph-Dependent Solid-State Fluorescence and Selective Metal-Ion-Sensor Properties of 2-(2-Hydroxyphenyl)-4(3H)-quinazolinone. Chem Asian J 2011; 7:374-9. [DOI: 10.1002/asia.201100832] [Citation(s) in RCA: 84] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2011] [Indexed: 11/07/2022]
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44
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Nishiguchi N, Kinuta T, Nakano Y, Harada T, Tajima N, Sato T, Fujiki M, Kuroda R, Matsubara Y, Imai Y. Control of the Solid-State Chiral Optical Properties of a Supramolecular Organic Fluorophore Containing 4-(2-Arylethynyl)-Benzoic Acid. Chem Asian J 2011; 6:1092-8. [DOI: 10.1002/asia.201000780] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2010] [Indexed: 11/08/2022]
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45
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Ooyama Y, Harima Y. Molecular design of mechanofluorochromic dyes and their solid-state fluorescence properties. ACTA ACUST UNITED AC 2011. [DOI: 10.1039/c0jm03601c] [Citation(s) in RCA: 125] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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46
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Kubota Y, Uehara J, Funabiki K, Ebihara M, Matsui M. Strategy for the increasing the solid-state fluorescence intensity of pyrromethene–BF2 complexes. Tetrahedron Lett 2010. [DOI: 10.1016/j.tetlet.2010.09.106] [Citation(s) in RCA: 78] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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47
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Anthony SP, Varughese S, Draper SM. Impact of molecular structure on intermolecular interactions and organic solid state luminescence in supramolecular systems. J PHYS ORG CHEM 2010. [DOI: 10.1002/poc.1757] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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48
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Heterocyclic quinol-type fluorophores. Part 9: Effect of forming a continuous intermolecular hydrogen bonding chain between fluorophores on the solid-state fluorescence properties. Tetrahedron 2010. [DOI: 10.1016/j.tet.2010.08.026] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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49
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Ooyama Y, Ito G, Fukuoka H, Nagano T, Kagawa Y, Imae I, Komaguchi K, Harima Y. Mechanofluorochromism of heteropolycyclic donor–π-acceptor type fluorescent dyes. Tetrahedron 2010. [DOI: 10.1016/j.tet.2010.07.018] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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50
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Kitamura C, Tsukuda H, Yoneda A, Kawase T, Kobayashi T, Naito H. 1,4,7,10-Tetraisoalkyltetracenes: Tuning of Solid-State Optical Properties and Fluorescence Quantum Yields by Peripheral Modulation. European J Org Chem 2010. [DOI: 10.1002/ejoc.201000221] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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