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An approach to the synthesis of chemically modified bisazocalix 4 arenes and their extraction properties        
Yazarlar
Tahir Tilki
Süleyman Demirel Üniversitesi, Türkiye
Prof. Dr. İzzet ŞENER Prof. Dr. İzzet ŞENER
Pamukkale Üniversitesi, Türkiye
Fikret Karcı
Pamukkale Üniversitesi, Türkiye
Ahmet Gülce
Hasalettin Deligöz
Pamukkale Üniversitesi, Türkiye
Özet
Bisazocalix[4]arenas [N,N′-bis(5-azo-25,26,27-tribenzoyloxy-28- hydroxycalix[4]arene)benzene (1), N,N′-bis(5-azo-25,26,27-tribenzoyloxy- 28-hydroxycalix [4]arene)biphenyl (2) and N,N′-bis(5-azo-25,26,27- tribenzoyloxy-28-hydroxycalix[4]arene)-2,2′-dinitro biphenyl (3)] have been synthesized from 25,26,27-tribenzoyloxy-28-hydroxycalix[4]arene by diazocoupling with the corresponding aromatic diamines (p-phenylenediamine, 4,4′-diamino biphenyl and 4,4′-diamino-2,2′-dinitrobiphenyl). Extraction studies of bisazocalix [4]arenes 1, 2, and 3 show no difference in their extraction behavior and selectivity, whereas azocalix[4]arenes are a poor extradant for heavy metal cations. The absorption spectra of the prepared bisazocalix[4]arenes are discussed, both the effect of varying pH and solvent upon the absorption ability of bisazocalix[4]arenes. © 2005 Elsevier Ltd. All rights reserved.
Anahtar Kelimeler
Absorption properties | Bisazocalix[4]arenes | Calix[n]arenes | Diazocoupling reaction | Solvent extraction
Makale Türü Özgün Makale
Makale Alt Türü SSCI, AHCI, SCI, SCI-Exp dergilerinde yayımlanan tam makale
Dergi Adı TETRAHEDRON
Dergi ISSN 0040-4020
Dergi Tarandığı Indeksler SCI
Makale Dili İngilizce
Basım Tarihi 10-2005
Cilt No 61
Sayı 40
Sayfalar 9624 / 9629
Doi Numarası 10.1016/j.tet.2005.07.078