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Synthesis and characterisation of methine dyes derived from condensation of 4-nitrophenylacetonitrile with aromatic aldehydes

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A range of methine dyes has been synthesised by condensation of electronegative active methylene compound, 4-nitrophenylacetonitrile with substituted benzaldehydes. The electronic absorption spectroscopic properties of the dyes were investigated. It was found that in general, substituents on the aromatic aldehyde moiety had a significant effect on the visible absorption maxima of the dyes.
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Keywords: Dyes; Polymers; Ultraviolet Radiation

Document Type: Research Article

Publication date: June 1, 2004

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