Chemistry Letters · 1988 · 18 citations · 2 references
Natural SciencesChemistryMaterials ScienceMaterials ChemistrySolid-state ChemistryThin FilmsCrystal ChemistryCrystal EngineeringCrystal GrowthCrystallization ProcessesSelf-assembled MaterialsSelf-assemblyBilayer Self-assemblyMolecular ChromophoresSelf-assembled MonolayersSelf-assembled Thin Films
Abstract The side-by-side arrangement of azobenzene chromophores (H-aggregate) in the self-supporting cast films of C8AzoC10N+Br− changes to the head-to-tail arrangement by heating above 115 °C (J′-aggregate) and by cooling below 60 °C after annealing above 115 °C (J-aggregate). The J-aggregate changes further to the original H-aggregate by absorbing water molecules in the atmosphere.
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