Please use this identifier to cite or link to this item: https://hdl.handle.net/11499/5305
Title: Azocalixarenes. 1: Synthesis, characterization and investigation of the absorption spectra of substituted azocalix[4]arenes
Authors: Karcı, Fikret
Şener, İzzet
Deligöz, Hasalettin
Keywords: Absorption properties
Azocalix[4]arenes
Calixarene
Calixarene dyes
Diazo-coupling reaction
Solvent effect
Substituent effect
Absorption
Dyes
Fourier transform infrared spectroscopy
Synthesis (chemical)
Diazo-coupling reactions
Pigments
absorption
dye
synthesis
Publisher: Elsevier BV
Abstract: A series of novel azocalix[4]arene dyes (1-12) were prepared by linking o-, m-, p-chloroaniline, o-, m-, p-nitroaniline, o-, m-, p-toluidine, m-, p-anisidine and aniline to calix[4]arene through a diazo-coupling reaction. These compounds were characterized by UV-vis, FT-IR and 1H-NMR spectroscopic techniques and elemental analysis. The effect of varying pH and solvent upon the absorption ability of azocalixarenes substituted with electron-donating and electron-withdrawing groups at their o-, m-, p-position was examined. Observed results were compared with those found for unsubstituted azocalix[4]arene. Concentration effects on the visible absorption maxima of the dyes are also reported. © 2003 Elsevier Ltd. All rights reserved.
URI: https://hdl.handle.net/11499/5305
https://doi.org/10.1016/S0143-7208(03)00095-0
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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