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Evidence for the coexistence of two different mechanisms for the occurrence of anti-Kasha S2 (1 1Bu) fluorescence from α- ω diphenylpolyenes
https://hiroshima.repo.nii.ac.jp/records/2007266
https://hiroshima.repo.nii.ac.jp/records/2007266b40ea20a-3860-41ef-951b-f1afb76f08ea
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
JCP_121_6956.pdf (94.6 KB)
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| Item type | デフォルトアイテムタイプ_（フル）(1) | |||||||
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| 公開日 | 2023-03-18 | |||||||
| タイトル | ||||||||
| タイトル | Evidence for the coexistence of two different mechanisms for the occurrence of anti-Kasha S2 (1 1Bu) fluorescence from α- ω diphenylpolyenes | |||||||
| 言語 | en | |||||||
| 作成者 |
Itoh, Takao
× Itoh, Takao
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| アクセス権 | ||||||||
| アクセス権 | open access | |||||||
| アクセス権URI | http://purl.org/coar/access_right/c_abf2 | |||||||
| 権利情報 | ||||||||
| 権利情報 | Copyright (c) 2004 American Institute of Physics | |||||||
| 主題 | ||||||||
| 主題Scheme | NDC | |||||||
| 主題 | 420 | |||||||
| 内容記述 | ||||||||
| 内容記述 | Fluorescence, fluorescence excitation, and absorption spectra have been measured for diphenylpolyenes with the polyene double bond number (n) from three to seven in solvents with different polarizabilities at room temperature. These polyenes exhibit anti-Kasha S2 (1 1Bu) fluorescence beside conventional S1 (2 1Ag) fluorescence in room temperature solution. It is shown that there are two different mechanisms for occurrence of the S2 (1 1Bu) fluorescence of diphenylpolyenes. S2 fluorescence occurs through the thermal population of the S1 state for the shorter diphenylpolyenes (n = 3 and 4), while it occurs as prompt S2 fluorescence due to inefficient S2-->S1 internal conversion for the longer diphenylpolyenes (n = 6 and 7). With diphenyldecapentaene (n = 5), S2 fluorescence based on both mechanisms is observed depending on the polarizability of the solvent used. The present results provide deeper insight into the mechanism for the occurrence of anti-Kasha S2 fluorescence of polyenes. | |||||||
| 言語 | en | |||||||
| 出版者 | ||||||||
| 出版者 | American Institute of Physics | |||||||
| 言語 | ||||||||
| 言語 | eng | |||||||
| 資源タイプ | ||||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||||
| 資源タイプ | journal article | |||||||
| 出版タイプ | ||||||||
| 出版タイプ | VoR | |||||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||||
| 関連情報 | ||||||||
| 識別子タイプ | DOI | |||||||
| 関連識別子 | 10.1063/1.1791155 | |||||||
| 関連情報 | ||||||||
| 識別子タイプ | DOI | |||||||
| 関連識別子 | http://dx.doi.org/10.1063/1.1791155 | |||||||
| 収録物識別子 | ||||||||
| 収録物識別子タイプ | NCID | |||||||
| 収録物識別子 | AA00694991 | |||||||
| 収録物識別子 | ||||||||
| 収録物識別子タイプ | ISSN | |||||||
| 収録物識別子 | 0021-9606 | |||||||
| 開始ページ | ||||||||
| 開始ページ | 6956 | |||||||
| 書誌情報 |
Journal of Chemical Physics Journal of Chemical Physics 巻 121, 号 14, p. 6956-6960, 発行日 2004-10-08 |
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| 旧ID | 16628 | |||||||
