Drastic Modulation of Stimuli-Responsive Fluorescence by a Subtle Structural Change of Organic Fluorophore and Polymorphism Controlled Mechanofluorochromism

  title={Drastic Modulation of Stimuli-Responsive Fluorescence by a Subtle Structural Change of Organic Fluorophore and Polymorphism Controlled Mechanofluorochromism},
  author={Palamarneri Sivaraman Hariharan and Gayathri Parthasarathy and Anup K. Kundu and Subramanian Vedhanarayanan Karthikeyan and Yoshimitsu Sagara and Dohyun Moon and Savarimuthu Philip Anthony},
  journal={Crystal Growth \& Design},
Stimuli-responsive fluorescence modulation of organic fluorophores is closely related to their structural organization, noncovalent interactions, ability to adopt different conformation, and phase change in the solid state. Herein, we have synthesized aggregation enhanced emissive fluorophores, (5-(4-(diphenylamino)benzylidene)-2,2-dimethyl-1,3-dioxane-4,6-dione (1), 5-(4-(diphenylamino)-2-methoxybenzylidene)-2,2-dimethyl-1,3-dioxane-4,6-dione (2), and 5-(4-(diphenylamino)-4-methoxybenzylidene… Expand
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Carbazole-based donor–acceptor derivatives of halogen-substituted positional isomers were synthesised and the effect of the halogen and position on the solid-state fluorescence andExpand
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Directed Polymorphism and Mechanofluorochromism of Conjugated Materials through Weak Non-Covalent Control.
A series of seven ester-terminated three-ring phenylene ethynylenes exhibit structure-dependent polymorphism wherein alkyl chain length modulates the propensity to form violet or green fluorescent solid phases, as well as tunable thermal and mechanofluorochromic transitions. Expand