Synthesis and Spectral Characteristics of Disazo Dyes Containing Heterocyclic Diazo Components

Disazo dyes were derived from heterocyclic amines by diazotizing 2-Amino-6-nitrobenzothiazole, 2-Amino-5-nitrothiazole, and 2-Amino-3,5-dinitrothiophene and coupling with Aniline as middle components, and 1-Naphthylamine, N,N-Dimethyl-1-naphthylamine, N,N-Dibutylaniline and N,N-Diethylaniline, Anili...

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Bibliographic Details
Published in:Molecular Crystals and Liquid Crystals 2013-01, Vol.583 (1), p.70-76
Main Authors: Kim, Ji-Hye, Lee, Jae-Yong, Bae, Ji-Hye, Choi, Jae-Hong
Format: Article
Language:English
Subjects:
Absorption maximum
benzothiazole
disazo dyes
solvatochromism
thiazole
thiophene
Aniline
Chemical compounds
Color
Coupling (molecular)
Crystals
Dyes
Joining
Liquid crystals
Spectra
Synthesis
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Summary:Disazo dyes were derived from heterocyclic amines by diazotizing 2-Amino-6-nitrobenzothiazole, 2-Amino-5-nitrothiazole, and 2-Amino-3,5-dinitrothiophene and coupling with Aniline as middle components, and 1-Naphthylamine, N,N-Dimethyl-1-naphthylamine, N,N-Dibutylaniline and N,N-Diethylaniline, Aniline as final components. Disazo red, violet, blue dyes were synthesized and the absorption bands of these compounds were observed in the range of 512-668 nm. The effects of diazo components and final coupling components on the visible absorption maxima of the dyes were also discussed.
ISSN:1542-1406
1563-5287
1527-1943
DOI:10.1080/15421406.2013.844272