• Title/Summary/Keyword: solvatofluorochromism

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Synthesis and Properties of Novel Rhodamine 6G Fluorescent Dye Compound

  • Kim, Hyung-Joo;Wang, Sheng;Son, Young-A
    • Textile Coloration and Finishing
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    • v.24 no.3
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    • pp.153-157
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    • 2012
  • One of organic dye materials which have been long lasting investigated is rhodamine 6G dye series. This dye has been attracted with considerable interests due to the reason of its promising photochemical properties. In this study, a novel fluorescent dye compound based on rhodamine 6G derivative was synthesized through the reaction of rhodamine 6G hydrazide and indole-3-carboxaldehdyde. Absorption and fluorescent emission spectra of this dye were determined with the properties of solvatofluorochromism. Related electron energy states of the dye compound were also characterized by computational calculations.

On-Off Type Mechanofluorochromism of a Novel Fluorescent Amorphous Molecular Material, N-{4-[Bis(4-methylphenyl)amino]benzylidene}aniline

  • Manabe, Satoshi;Nagata, Eisuke;Nakano, Hideyuki
    • Rapid Communication in Photoscience
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    • v.3 no.2
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    • pp.38-41
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    • 2014
  • The title compound (BMBZA) was designed and synthesized as a novel fluorescent amorphous molecular material. BMBZA was found to exhibit solvatofluorochromism and to readily form an amorphous glass by cooling the melt on standing. In addition, the morphological change from crystalline state to amorphous one could be induced by mechanical grinding. Although fluorescence was scarcely observed for the crystalline sample of BMBZA, the grinding the sample was found to enhance the fluorescence emission, that is, BMBZA exhibited on-off type mechanofluorochromism.