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http://dx.doi.org/10.18419/opus-7648
Autor(en): | Haenel, Matthias Schweitzer, Dieter |
Titel: | Electronic interactions between polycyclic arenes in cyclophanes |
Erscheinungsdatum: | 1988 |
Dokumentart: | Konferenzbeitrag |
Erschienen in: | Ebert, Lawrence B. (Hrsg.): Polynuclear aromatic compounds. Washington, DC. : American Chemical Society, 1988 (Advances in chemistry series 217). - ISBN 0-8412-1014-4, S. 333-355 |
URI: | http://nbn-resolving.de/urn:nbn:de:bsz:93-opus-65087 http://elib.uni-stuttgart.de/handle/11682/7665 http://dx.doi.org/10.18419/opus-7648 |
Zusammenfassung: | The π-π interaction between polycyclic arenes and the effects of orientation were studied in [2.2]-, [3.3]-, and [3.2]naphthalenophanes, [2]naphthaleno[2]paracyclophanes, and syn- and anti[2.2](2,7)fluorenophane by electron absorption and emission spectroscopy as well as by optically detected magnetic resonance (ODMR) of the excited triplet state. The π-π interaction in the excited singlet and triplet state was found to be highest if a maximal number of sixmembered rings of the interacting arenes in a parallel orientation are completely eclipsed. Similarly, the π-π interaction between the nonbonding nitrogen electron pair and the aromatic π electrons was investigated in isomeric etheno-bridged naphthalenopyridinophanes and an anthracenopyridinophane; in these pyridinophanes, the pyridine rings are fixed perpendicularly above different sites of the naphthalene and anthracene units, respectively. |
Enthalten in den Sammlungen: | 15 Fakultätsübergreifend / Sonstige Einrichtung |
Dateien zu dieser Ressource:
Datei | Beschreibung | Größe | Format | |
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schw120.pdf | 8 MB | Adobe PDF | Öffnen/Anzeigen |
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