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International Journal of Applied Research
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ISSN Print: 2394-7500, ISSN Online: 2394-5869, CODEN: IJARPF

IMPACT FACTOR (RJIF): 8.4

Vol. 4, Issue 1, Part F (2018)

Study of synthesis and spectroscopic characterisation of some novel butadienyl asycyanine colorants

Study of synthesis and spectroscopic characterisation of some novel butadienyl asycyanine colorants

Author(s)
Mobashshir Hassan Khan
Abstract
This paper present the Twenty-one novel chromophoric chain β-substituted butadienyl asycyanine colorants have been synthesized by catalytic condensation of (i) dimethylaminostyryl phenyl ketone, (ii) 4ʹ-dimethylaminostyryl-4ʹ-nitrophenyl ketone and (iii) 4ʹ-dimethylaminostyryl-4ʹ-methoxyphenyl ketone with seven lepidinium methyliodide salts in ethanolic DMF medium using piperidine as basic catalyst. These colorants were synthesized with the objective to study the effect of electron acceptor and electron donor group substituent at 4ʹ-position in the chain β-phenyl nucleus on visible absorption maxima. The newly prepared colorants were found to exhibit uniform increase in absorption maxima i.e. Red shift (RS), when collated with analogues having no substituent in the β- phenyl nucleus.
Pages: 454-456  |  487 Views  65 Downloads


International Journal of Applied Research
How to cite this article:
Mobashshir Hassan Khan. Study of synthesis and spectroscopic characterisation of some novel butadienyl asycyanine colorants. Int J Appl Res 2018;4(1):454-456.
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