4-tert-butylcalix[4]arene having nitrile pendant groups as Hg2+ selective receptors
Küçük Resim Yok
Tarih
2013
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
ELSEVIER SCIENCE BV
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
We synthesized a series of 4-tert-butylcalix[4]arene nitriles (5-7) by the reaction of 4-tert-butylcalix[4]arene (1) with 4'-(6-bromohexyloxy)biphenyl-4-carbonitrile (2), 4'-(10-bromode-cyloxy)biphenyl-4-carbonitrile (3), and 4'-(12-bromododecyloxy)biphenyl-4-carbonitrile (4) and characterized their structures, respectively. The extraction abilities of newly synthesized 5-7 toward some selected heavy metal cations, such as Co2+, Cu2+, Ni2+, Zn2+, Cd2+, and Hg2+, were first evaluated and compared by the solvent extraction method. The extraction results revealed that 5-7 were efficient and selective cation receptors for Hg2+ over-selected cations. On the other hand, the complexation behavior of Hg2+ with 5-7 was also investigated by using NMR, UV-vis, and IR spectroscopic methods. (C) 2012 Elsevier B.V. All rights reserved.
Açıklama
Anahtar Kelimeler
Calix[4]arene, Nitrile, Mercury, Selective extraction, Cation receptor
Kaynak
TALANTA
WoS Q Değeri
Q1
Scopus Q Değeri
Q1
Cilt
106
