The pH effect on complexation of Alkali metal cation by p-sulfonatocalix (4) arene in aqueous solution
محورهای موضوعی : Journal of Physical & Theoretical Chemistry
K. Zare
1
(
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)
N. Osouleddini
2
(
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)
کلید واژه: Formation constant, spectrophotometeric titration, alkali metal cation, p-sulfonatocalix(4)arene,
چکیده مقاله :
The complexation of Alkali metal cations by the water-soluble p-sulfonic acid calix(4)arenewas thermodynamically characterized using spectrophotometeric data which are consistentwith the formation of a 1:1 complex resulting from electrostatic interactions between thesulfonato groups and alkali metal cations. In this study, we determined the formationconstants (log K) of the complexes and have compared in deferent pH (1.0 and 1.5) at 25°C.
