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Photochromism of a diarylethene derivative in aqueous solution capping with a water-soluble nano-cavitand
| Title: | Photochromism of a diarylethene derivative in aqueous solution capping with a water-soluble nano-cavitand |
| Authors: | Saitoh, Masashi Browse this author | | Fukaminato, Tuyoshi Browse this author | | Irie, Masahiro Browse this author |
| Keywords: | Photochromism | | Diarylethene | | Nano-cavitand | | Water-soluble |
| Issue Date: | 5-Sep-2009 |
| Publisher: | Elsevier B.V. |
| Journal Title: | Journal of Photochemistry and Photobiology A: Chemistry |
| Volume: | 207 |
| Issue: | 1 |
| Start Page: | 28 |
| End Page: | 31 |
| Publisher DOI: | 10.1016/j.jphotochem.2009.03.010 |
| Abstract: | A photochromic diarylethene, 1,2-bis(3-methyl-2-thienyl)perfluorocyclopentene (1) was encapsulated into water-soluble nano-cavitand 2 to induce the photochromic performance in aqueous solution. H-1 NMR measurements confirmed the formation of 1:1 complex between 1 and 2 in a D2O solution. Upon irradiation with UV and visible light, encapsulated diarylethene within nano-cavitand exhibited reversible and efficient photochromic reactions even in the aqueous solution. The photocyclization and photocycloreversion quantum yields are almost similar to those observed in organic solvents. The efficient photochromic performance of the diarylethene in aqueous solution is attributed to that the empty pore of 2 selectively captures the hydrophobic perfluorocyclopentene moiety and the reactive thiophene moieties are free from the cavity, as evidenced by H-1 NOESY measurement. |
| Type: | article (author version) |
| URI: | http://hdl.handle.net/2115/39665 |
| Appears in Collections: | 電子科学研究所 (Research Institute for Electronic Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: 深港 豪
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