Investigation of Metal Cation and Dichromate Anios Extraction Properties of Some Calix[4, 8]aren Derivatives

Abstract

This work has been synthesized according to literature methods for compounds of calix[4]arene and calix[8]arene bearing 4-nitrobenzyloxy, 4-aminobenzyloxy and 3-aminopropyloxy groups. To view the ion transport properties of these compounds liquid-liquid extraction studies were performed with metal cations (K⁺, Na⁺, Cs⁺, Co²⁺, Cd²⁺, Ni²⁺, Cu²⁺, Hg²⁺, ve Pb²⁺) and  chromate ions. Extraction studies have shown that the amine group-containing calixarenes are large amounts in organic phase transport from the aqueous phase due to higher interaction with the metals than the nitro group-bearing calixarenes. In addition, it was observed that the 1 and 3 compounds carried Na₂Cr₂O₇ to a large extent from the aqueous phase to the organic phase at low pH.

Keywords

• Calixarene,Toxic metal,Liquid-liquid extraction,Dichromate anions

Bazı Kaliks[4, 8]aren Türevlerinin Metal ve Kromat İyon Taşıma Özelliklerinin İncelenmesi

Abstract

Bu çalışmada 4-nitrobenziloksi, 4-aminobenziloksi ve 3-aminopropiloksi grupları taşıyan kaliks[4]aren ve kaliks[8]aren bileşikleri literatür metotlara göre sentezlenmiştir. Bu bileşiklerin iyon taşıma özelliklerini görmek için sıvı-sıvı ekstraksiyon çalışmaları metal katyonları (K⁺, Na⁺, Cs⁺, Co²⁺, Cd²⁺, Ni²⁺, Cu²⁺, Hg²⁺, ve Pb²⁺) ve kromat iyonu ile yapılmıştır. Ekstraksiyon çalışmaları, amin grubu içeren kaliksarenlerin, nitro grubu taşıyan kaliksarenlere göre metallerle daha yüksek etkileşim yapmalarından dolayı sulu fazdan organik faza taşımasının daha fazla olduğunu göstermiştir. Ayrıca 1 ve 3 bileşiklerin Na₂Cr₂O₇’i düşük pH’larda büyük oranda sulu fazdan organik faza taşıdığı gözlenmiştir.

Keywords

• Kaliksaren,Toksik metal,Sıvı-sıvı ektraksiyon,Dikromat anyonu

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