Photoswitching behavior of a cyclohexene-bridged versus a cyclopentene-bridged dithienylethene system

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Autor/in:
Erscheinungsjahr:
2015
Medientyp:
Text
Schlagworte:
  • UV/Vis spectroscopy
  • density functional calculations
  • molecular switches
  • photochemistry
  • photochromism
Beschreibung:
  • Photoswitching is an intriguing way of incorporating functionality into molecules or their subunits. Dithienylethene switches are particularly promising, but have so far mostly been studied with five-membered ring (cyclopentenyl) backbones. We aim at comparing the switching properties of backbones with five and six carbon atoms in the ring. A major advantage is that cyclohexenyl rings offer new options for chiral functionalization. A slight change in the reaction conditions of a McMurry ring closure reaction leads to the formation of dithienyl derivatives with a cyclohexene backbone in reasonable yield. Density functional theory calculations were carried out, demonstrating the similarity of both compounds. Experimental results confirm the theoretical outcomes.
Lizenz:
  • info:eu-repo/semantics/restrictedAccess
Quellsystem:
Forschungsinformationssystem der UHH

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oai:www.edit.fis.uni-hamburg.de:publications/d012ecae-7517-40cf-90ce-383dcae9cc67