Yazarlar |
Prof. Dr. İzzet ŞENER
Ankara Üniversitesi, Türkiye |
Fikret Karcı
Pamukkale Üniversitesi, Türkiye |
Emine Kılıç
Ankara Üniversitesi, Türkiye |
Hasalettin Deligöz
Pamukkale Üniversitesi, Türkiye |
Özet |
Synthesis of seven novel hetarylazocalix[6] arene dyes was achieved by diazotisation of seven different heterocyclic amines using nitrosyl sulphuric acid, coupling with calix[6]arene. Hetarylazocalix[6]arene dyes were characterized based on FT-IR and 1H-NMR spectroscopic techniques as well as elemental analysis. The absorption spectra of the dyes are discussed, both the effect of varying pH and solvent upon the absorption ability of azocalixarenes. Absorption maxima of the prepared dyes showed large bathochromic effects in comparison with analogues dyes containing carbocyclic amine residue. The colour of the azocalixarene 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. |
Anahtar Kelimeler |
Absorption properties | Calixarene | Diazo-coupling reaction | Hetarylazocalix[6]arenes | Heterocyclic amines | 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 | 149 / 157 |
Doi Numarası | 10.1016/j.dyepig.2003.11.016 |