Synthesis, visible absorption spectra and application properties of disperse dyes derived from 1-indanylidenemalononitrile

The series of dyes derived from 1-indanylidenemalononitrile were prepared and characterised. The purity of the dyes was checked by TLC and elemental analysis; the structure of substances was confirmed by 1H and 13C NMR spectra. The relationships among the structure of dyes, their absorption characte...

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Bibliographic Details
Published in:Dyes and pigments 2002-04, Vol.53 (1), p.21-30
Main Authors: Almonasy, Numan, Nepraš, Miloš, Burgert, Ladislav, Lyčka, Antonin
Format: Article
Language:English
Subjects:
Applied sciences
Chemical industry and chemicals
Colouristic characteristics
Disperse dyes
Dyes, pigments
Electronic absorbtion spectra
Exact sciences and technology
Indanylidenemalononitrile
Industrial chemicals
Quantum chemical calculation
Synthesis
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Summary:The series of dyes derived from 1-indanylidenemalononitrile were prepared and characterised. The purity of the dyes was checked by TLC and elemental analysis; the structure of substances was confirmed by 1H and 13C NMR spectra. The relationships among the structure of dyes, their absorption characteristics and the polarity of a solvent were investigated. The full optimised geometry was computed by AM1 method, the theoretical characteristics of electronic transitions were studied by PPP-MO, CNDO/S and INDO/S procedures. Due to possible application of the studied dyes in textile practice, the colouristic characteristics were determined as well.
ISSN:0143-7208
1873-3743
DOI:10.1016/S0143-7208(01)00089-4