Synthesis and investigations of the absorption spectra of hetarylazo disperse dyes derived from 2,4-quinolinediol


Sener I., Karci F., Ertan N., Kilic E.

DYES AND PIGMENTS, vol.70, no.2, pp.143-148, 2006 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 70 Issue: 2
  • Publication Date: 2006
  • Doi Number: 10.1016/j.dyepig.2005.05.003
  • Title of Journal : DYES AND PIGMENTS
  • Page Numbers: pp.143-148

Abstract

Synthesis of some novel hetarylazoquinoline dyes was achieved by diazotisation of nine heterocyclic amines using nitrosyl sulphuric acid, coupling with 2,4-quinolinediol. These dyes were characterized by UV-vis. FT-IR and H-1 NMR spectroscopic techniques and elemental analysis. Visible absorption spectra of the dyes are discussed, both the effects of varying pH and solvent upon the absorption ability of azoquinolines. The colour of the dyes was discussed with respect to the nature of the heterocyclic ring and to the substituents therein. Temperature and concentration effects on the visible absorption maxima of the dyes are also reported. (c) 2005 Elsevier Ltd. All rights reserved.