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Azocalixarenes 1 synthesis characterization and investigation of theabsorption spectra of substituted azocalix 4 arenes        
Yazarlar
Fikret Karcı
Pamukkale Üniversitesi, Türkiye
Prof. Dr. İzzet ŞENER Prof. Dr. İzzet ŞENER
Ankara Üniversitesi, Türkiye
Hasalettin Deligöz
Pamukkale Üniversitesi, Türkiye
Özet
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.
Anahtar Kelimeler
Absorption properties | Azocalix[4]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 10-2003
Cilt No 59
Sayı 1
Sayfalar 53 / 61
Doi Numarası 10.1016/S0143-7208(03)00095-0