Resonance Two-Photon Ionization of Diarylethene in the Presence of Cyclodextrin
The transient absorption of the diarylethene 1,2-bis(2,4-dimethyl-5-phenyl-3-thienyl)-3,3,4,4,5,5-hexafluoro-1-cyclopentene (DE) was measured using 266 nm laser flash photolysis in the presence of various cyclodextrins (CDs) in aqueous solvent. Ionization of DE occurred within the laser flash (5 ns)...
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| Format: | Article |
| Language: | English |
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Wiley
2013-01-01
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| Series: | International Journal of Photoenergy |
| Online Access: | http://dx.doi.org/10.1155/2013/374180 |
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| author | Michihiro Hara Makoto Miwa Tatsuya Takeshita Shouhei Watanabe |
| author_facet | Michihiro Hara Makoto Miwa Tatsuya Takeshita Shouhei Watanabe |
| author_sort | Michihiro Hara |
| collection | DOAJ |
| description | The transient absorption of the diarylethene 1,2-bis(2,4-dimethyl-5-phenyl-3-thienyl)-3,3,4,4,5,5-hexafluoro-1-cyclopentene (DE) was measured using 266 nm laser flash photolysis in the presence of various cyclodextrins (CDs) in aqueous solvent. Ionization of DE occurred within the laser flash (5 ns) to give the DE radical cation and water-solvated electron. The electron was generated by two-photon excitation through simultaneous irradiation with 266 nm laser light, and the ionization quantum yields of DE in the presence of α-CD, β-CD, m-β-CD, and γ-CD depended on the properties of the DE/CD complexes. These results suggest that useful two-photon ionization occurred for these complexes. The ionization quantum yield of DE was found to increase in aqueous solution after the addition of m-β-CD (50 mM), in which m-β-CD likely controlled the photochromic reactivity of DE. |
| format | Article |
| id | doaj-art-da7810a9699e4432bb61e51e3a419998 |
| institution | Kabale University |
| issn | 1110-662X 1687-529X |
| language | English |
| publishDate | 2013-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Photoenergy |
| spelling | doaj-art-da7810a9699e4432bb61e51e3a4199982025-02-03T01:22:18ZengWileyInternational Journal of Photoenergy1110-662X1687-529X2013-01-01201310.1155/2013/374180374180Resonance Two-Photon Ionization of Diarylethene in the Presence of CyclodextrinMichihiro Hara0Makoto Miwa1Tatsuya Takeshita2Shouhei Watanabe3Department of Environmental and Biological Chemistry, Fukui University of Technology, 3-6-1 Gakuen, Fukui 910-8505, JapanDepartment of Environmental and Biological Chemistry, Fukui University of Technology, 3-6-1 Gakuen, Fukui 910-8505, JapanDepartment of Environmental and Biological Chemistry, Fukui University of Technology, 3-6-1 Gakuen, Fukui 910-8505, JapanDepartment of Environmental and Biological Chemistry, Fukui University of Technology, 3-6-1 Gakuen, Fukui 910-8505, JapanThe transient absorption of the diarylethene 1,2-bis(2,4-dimethyl-5-phenyl-3-thienyl)-3,3,4,4,5,5-hexafluoro-1-cyclopentene (DE) was measured using 266 nm laser flash photolysis in the presence of various cyclodextrins (CDs) in aqueous solvent. Ionization of DE occurred within the laser flash (5 ns) to give the DE radical cation and water-solvated electron. The electron was generated by two-photon excitation through simultaneous irradiation with 266 nm laser light, and the ionization quantum yields of DE in the presence of α-CD, β-CD, m-β-CD, and γ-CD depended on the properties of the DE/CD complexes. These results suggest that useful two-photon ionization occurred for these complexes. The ionization quantum yield of DE was found to increase in aqueous solution after the addition of m-β-CD (50 mM), in which m-β-CD likely controlled the photochromic reactivity of DE.http://dx.doi.org/10.1155/2013/374180 |
| spellingShingle | Michihiro Hara Makoto Miwa Tatsuya Takeshita Shouhei Watanabe Resonance Two-Photon Ionization of Diarylethene in the Presence of Cyclodextrin International Journal of Photoenergy |
| title | Resonance Two-Photon Ionization of Diarylethene in the Presence of Cyclodextrin |
| title_full | Resonance Two-Photon Ionization of Diarylethene in the Presence of Cyclodextrin |
| title_fullStr | Resonance Two-Photon Ionization of Diarylethene in the Presence of Cyclodextrin |
| title_full_unstemmed | Resonance Two-Photon Ionization of Diarylethene in the Presence of Cyclodextrin |
| title_short | Resonance Two-Photon Ionization of Diarylethene in the Presence of Cyclodextrin |
| title_sort | resonance two photon ionization of diarylethene in the presence of cyclodextrin |
| url | http://dx.doi.org/10.1155/2013/374180 |
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