Synthesis of 1,3-(distal) diamide substituted calix[4]arene based receptors for extraction of chromium (VI)
Küçük Resim Yok
Tarih
2007
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
TAYLOR & FRANCIS LTD
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
The synthesis of novel diamide derivatives of calix[4]arene by aminolysis of calix[4]arene diesters was reported. The H-1 and C-13 NMR, data showed that the synthesized compounds exist in the cone conformation. The complexation properties of these calix[4]arenes have been studied towards Cr2O7=/HCr2O7- anions and it has been found that the protonated alkyl ammonium forms of calix[4]arene diamide derivatives (5,11,17,23-tetra-tert-butyl-25,27-(diethylpiperidineacetamido)26,28- dihydroxy-calix[4]arene 3 and 25,27-(diethyl-piperidineacetamido)26,28-dihydroxycalix[4]arene 4) are effective extractants for transferring HCr2O7-/Cr2O7= anions.
Açıklama
Anahtar Kelimeler
calix[4]arene, diamide, dichromate anions, solvent, extraction
Kaynak
SUPRAMOLECULAR CHEMISTRY
WoS Q Değeri
Q2
Scopus Q Değeri
Q3
Cilt
19
Sayı
3
