Elucidation of mechanism for thermoluminescence of reactive organic radicals and development of new light-emitting systems.
Project/Area Number |
19350025
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Research Category |
Grant-in-Aid for Scientific Research (B)
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Allocation Type | Single-year Grants |
Section | 一般 |
Research Field |
Organic chemistry
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Research Institution | Osaka Prefecture University |
Principal Investigator |
IKEDA Hiroshi Osaka Prefecture University, 工学研究科, 准教授 (30211717)
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Co-Investigator(Kenkyū-buntansha) |
MIZUNO Kazuhiko 大阪府立大学, 工学研究科, 教授 (10109879)
MAEDA Hajime 大阪府立大学, 工学研究科, 助教 (40295720)
|
Co-Investigator(Renkei-kenkyūsha) |
MAEDA Hajime 金沢大学, 物質化学系, 准教授 (40295720)
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Project Period (FY) |
2007 – 2009
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Project Status |
Completed (Fiscal Year 2009)
|
Budget Amount *help |
¥20,280,000 (Direct Cost: ¥15,600,000、Indirect Cost: ¥4,680,000)
Fiscal Year 2009: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Fiscal Year 2008: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2007: ¥13,780,000 (Direct Cost: ¥10,600,000、Indirect Cost: ¥3,180,000)
|
Keywords | 光化学 / 有機EL / 電子移動反応 / 反応機構 / ラジカルカチオン / ビラジカル / 熱発光 / 有機ラジカルEL / 光反応 / ピラジカル |
Research Abstract |
In this work, we studied the mechanism for γ-ray-triggered thermoluminescence (TL) and found that the emitting species is the excited trimenthylenemethane biradical (2^<・・*>). We also developed X-ray-triggered TL method and studied substituent effects of 1 on TL by using this method. As a result, we concluded that 2^<・・*> has a twisted molecular geometry and localized electronic structure and that the allyl moiety in 2^<・・*> does not affect the emission process of 2^<・・*>.
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Report
(4 results)
Research Products
(118 results)
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[Journal Article] Multi-Input/Multi-Output Molecular Response System Based on the Dynamic Redox Behavior of 3, 3, 4, 4-Tetraaryldihydro[5]helicene Derivatives: Reversible Formation/Destruction of Chiral Fluorophore and Modulation of Chiroptical Properties by Solvent Polarity2009
Author(s)
Suzuki, T. ; Ishigaki, Y. ; Iwai, T. ; Kawai, H. ; Fujiwara, K. ; Ikeda, H. ; Kano, Y. ; Mizuno, K
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Journal Title
Chem. Eur. J 15
Pages: 9434-9441
Related Report
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[Journal Article] Multi-Input/Multi-Output Molecular Response System Based on the Dynamic Redox Behavior of 3, 3, 4, 4-Tetraaryldihydro[5]helicene Derivatives : Reversible Formation/Destruction of Chiral Fluorophore and Modulation of Chiroptical Properties by Solvent Polarity2009
Author(s)
Suzuki, T.; Ishigaki, Y.; Iwai, T.; Kawai, H.; Fujiwara, K.; Ikeda, H.; Kano, Y.; Mizuno, K.
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Journal Title
Chem.Eur.J. 15
Pages: 9434-9441
Related Report
Peer Reviewed
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[Journal Article] Experimental and Computational Studies on the Dipole Moments of Annulated-Tropones and 1, 4-Polyacenequinones2009
Author(s)
Kudoh, M., Satoh, T., Ikeda, H., Nakazawa, T., Miyashi, T., Katagiri, S., Sudoh, S.
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Journal Title
Bull. Chem. Soc. Jpn. 82
Pages: 70-85
NAID
Related Report
Peer Reviewed
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[Journal Article] Photochromic Behavior of Tetrathienylethene in Condensed Systems. Attempts to Control 1, 2-Dyotropic Rearrangement of the Closed Isomer2009
Author(s)
Ikeda, H, Kawabe, A., Sakai, A., Namai, H., Mizuno, K.
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Journal Title
Res. Chem. Intermed. 35(In press)
Related Report
Peer Reviewed
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[Journal Article] The Facile Generation of a Tetramethyleneethane Tvpe Radical Cation and Biradical Utilizing a 3, 4-Di(α-styryl)furan and a Photoinduced ET and Back ET Sequence2008
Author(s)
Ikeda, T., Ikeda, H., Takahashi, Y., Yamada. M., Mizuno, K., Tero-Kubota, S., Yamauchi, S.
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Journal Title
J. Am. Chem. Soc. 130
Pages: 2466-2472
Related Report
Peer Reviewed
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[Journal Article] The Reaction Mechanism for the High Quantum Yield of the Cypridina (Vargula) Bioluminescence Supported by Chemiluminescence of 6-Aryl-2-methylimidazo[1, 2-a]pyrazm-3(7H)-ones(Cypridina Luciferin Analogues)2008
Author(s)
Hirano, T., Takahashi, Y., Kondo, H., Maki, S., Kojima, S., Ikeda, H., Niwa, H.
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Journal Title
Photochem. Photobiol. Sci. 7
Pages: 197-207
Related Report
Peer Reviewed
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[Journal Article] Chemiexcitation Mechanism for Cypridina (Vargula) and Aequorea Bioluminescence2008
Author(s)
Hirano, T., Ohba, H., Takahashi, Y., Maki, S., Kojima, S, Ikeda, H., Niwa, H.
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Journal Title
Abstract of In The 15th International Symposium on Bioluminescence and Chemiluminescence : Chemistry, Biology and Applications : Szalay, A. A., Hill, P. J., Kricka, L. J., Stanley, P. E., Eds. ; World Science
Pages: 19-22
Related Report
Peer Reviewed
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