Photochromism and Chirality Propagation of Chromene Amphiphile Aggregates in Aqueous Ethanol Solutions
Spectroscopic and morphologic characteristics of an racemic chromene cationic amphiphile 1+ having a chiral camphor sulfonate counter anion ((+) or (−) CS∗−) were studied in aggregates in aqueous ethanol solutions. The media-dependent photochromism of 1+/CS∗− and the enantio-preferential selective r...
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| Veröffentlicht in: | Chemistry letters 2007-08, Vol.36 (8), p.1048-1049 |
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| Hauptverfasser: | , , , , , |
| Format: | Artikel |
| Sprache: | eng |
| Online-Zugang: | Volltext |
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| Zusammenfassung: | Spectroscopic and morphologic characteristics of an racemic chromene cationic amphiphile 1+ having a chiral camphor sulfonate counter anion ((+) or (−) CS∗−) were studied in aggregates in aqueous ethanol solutions. The media-dependent photochromism of 1+/CS∗− and the enantio-preferential selective ring-closing process after UV irradiation were observed owing to the propagation of the chirality from the counter anion CS∗−. |
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| ISSN: | 0366-7022 1348-0715 |
| DOI: | 10.1246/cl.2007.1048 |