Selective Complexation of Hg2+ by Biscalix[4]arene Nitriles

Ionophoric biscalix[4]arenyl nitriles in which the lower rims are linked via a single site on each calixarene were synthesized. Their complexing abilities were studied by the liquid-liquid extraction of alkali (Li + , Na + , K + , and Cs + ) and selected transition metal (Cu 2+ , Co 2+ , Cd 2+ , Ni...

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Bibliographic Details
Published in:Separation science and technology 2000-01, Vol.35 (8), p.1247-1256
Main Authors: MEMON, SHAHABUDDIN, UYSAL, GÜLDEREN, YILMAZ, MUSTAFA
Format: Article
Language:English
Subjects:
Alkali cations
Biscalixarenes
Solvent extraction
Transition metal cations
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Summary:Ionophoric biscalix[4]arenyl nitriles in which the lower rims are linked via a single site on each calixarene were synthesized. Their complexing abilities were studied by the liquid-liquid extraction of alkali (Li + , Na + , K + , and Cs + ) and selected transition metal (Cu 2+ , Co 2+ , Cd 2+ , Ni 2+ , and Hg 2+ ) cations. We found a novel selectivity of these compounds toward Hg +2 cations through examination of the extraction.
ISSN:0149-6395
1520-5754
DOI:10.1081/SS-100100223