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Azocalixarenes 2 synthesis characterization and investigation of theabsorption spectra of azocalix 6 arenes containing chromogenic groups        
Yazarlar
Fikret Karcı
Pamukkale Üniversitesi, Türkiye
Prof. Dr. İzzet ŞENER Prof. Dr. İzzet ŞENER
Ankara Üniversitesi, Türkiye
Hasalettin Deligöz
Pamukkale Üniversitesi, Türkiye
Özet
Twelve new azocalix[6]arenes (1-12) have been synthesized by linking o-, m-, p-chloroaniline, o-, m-, p-nitroaniline, o-, m-, p-toluidine, m-, p-anisidine and aniline to calix[6]arene through a diazo-coupling reaction. The prepared compounds were characterized based on UV-vis, FT-IR and 1H-NMR spectroscopic techniques as well as 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[6]arenes. Concentration effects on the visible absorption maxima of the dyes are also reported. © 2004 Elsevier Ltd. All rights reserved.
Anahtar Kelimeler
Absorption spectra | Azocalix[6]arenes | Calixarene | Calixarene dyes | Diazo-coupling reaction | Solvent effect | Substituent effect
Makale Türü Özgün Makale
Makale Alt Türü SSCI, AHCI, SCI, SCI-Exp dergilerinde yayımlanan tam makale
Dergi Adı DYES AND PIGMENTS
Dergi ISSN 0143-7208
Dergi Tarandığı Indeksler SCI
Makale Dili İngilizce
Basım Tarihi 08-2004
Cilt No 62
Sayı 2
Sayfalar 131 / 140
Doi Numarası 10.1016/j.dyepig.2003.11.017