Please use this identifier to cite or link to this item: https://hdl.handle.net/11499/5070
Title: Azocalixarenes. 3: Synthesis and investigation of the absorption spectra of hetarylazo disperse dyes derived from calix[4]arene
Authors: Şener, İzzet.
Karcı, Fikret.
Kiliç, E.
Deligöz, H.
Keywords: Absorption properties
Azocalix[4]arenes
Calixarene
Calixarene dyes
Diazo-coupling reaction
Heterocyclic amines
Solvent effect
Substituent effect
Absorption
Amines
Dissociation
pH effects
Spectrum analyzers
Synthesis (chemical)
Absorption spectra
Diazotization
Heterocyclic rings
Dyes
absorption
azo dye
disperse dye
dye manufacturing
synthesis
Abstract: Synthesis of some novel hetarylazocalix[4]arene dyes was achieved by diazotisation of six heterocyclic amines using nitrosyl sulphuric acid, coupling with calix[4]arene. The absorption spectra of the dyes are discussed, both the effect of varying pH and solvent upon the absorption ability of azocalixarenes. The hetarylazocalix[4]arene readily undergo acidic dissociation into the common anion in DMF and DMSO. Absorption maxima of the dyes showed large bathochromic effects in comparison with analogues dyes containing carbocyclic amine residue. The colour of the dyes is discussed with respect to the nature of the heterocyclic ring and substituents there in. Concentration effects on the visible absorption maxima of the dyes are also reported. © 2004 Elsevier Ltd. All rights reserved.
URI: https://hdl.handle.net/11499/5070
https://doi.org/10.1016/j.dyepig.2003.11.015
ISSN: 0143-7208
Appears in Collections:Fen-Edebiyat Fakültesi Koleksiyonu
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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