Photoswitchable Exciton Coupling in Merocyanine-Diarylethene Multi-Chromophore Hydrogen-Bonded Complexes

Photoswitchable Exciton Coupling in Merocyanine-Diarylethene Multi-Chromophore Hydrogen-Bonded Complexes

Light on: Photocontrol of J‐type exciton interactions by using chromophores is reported (see picture). Hydrogen‐bonded merocyanine dyes could be switched reversibly through photoinduced ring‐closure/ring‐opening reactions of diarylethene receptors. Addition of H‐aggregation‐inducing bismelamine rece...

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Veröffentlicht in:Angewandte Chemie International Edition 2012-09, Vol.51 (38), p.9679-9683
Hauptverfasser: Yagai, Shiki, Iwai, Kazunori, Karatsu, Takashi, Kitamura, Akihide
Format: Artikel
Sprache:eng
Schlagworte:
Benzopyrans - chemistry
Chromophores
Dyes
Ethylenes - chemistry
Excitation
exciton coupling
Hydrogen Bonding
hydrogen bonds
Indoles - chemistry
Joining
Molecular Structure
Photochemical Processes
photochemistry
photochromism
Pictures
Receptors
self-assembly
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Beschreibung
Zusammenfassung:Light on: Photocontrol of J‐type exciton interactions by using chromophores is reported (see picture). Hydrogen‐bonded merocyanine dyes could be switched reversibly through photoinduced ring‐closure/ring‐opening reactions of diarylethene receptors. Addition of H‐aggregation‐inducing bismelamine receptors enabled the partial interconversion between J‐ and H‐type exciton coupling.
ISSN:1433-7851
1521-3773
DOI:10.1002/anie.201205504