Does cation dehydration drive the binding of metal ions to polyelectrolytes in water? What we can learn from the behaviour of aluminium(III) and chromium(III)

Physical Chemistry Chemical Physics : PCCP
Hugh D BurrowsGuangyue Bai

Abstract

Much stronger binding is seen in aqueous solutions between the anionic polyelectrolyte potassium poly(vinyl sulfate) and the substitution labile aluminium(III) than with the kinetically inert chromium(III). This strongly supports the idea that entropy driven water loss from the hydration sphere of the metal ion plays a major role in driving binding of the trivalent metal ion to the polyelectrolyte.

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Citations

Jun 2, 2015·Dalton Transactions : an International Journal of Inorganic Chemistry·Ana R FreitasHugh D Burrows
Nov 15, 2016·Physical Chemistry Chemical Physics : PCCP·Elise RotureauJérôme F L Duval
Jun 23, 2018·Physical Chemistry Chemical Physics : PCCP·Pierre-Arnaud ArtolaGabriel Plancque
Jun 21, 2020·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·João P VaredaLuisa Durães
Oct 9, 2012·Journal of the American Chemical Society·Min KimSeth M Cohen
Nov 6, 2013·Langmuir : the ACS Journal of Surfaces and Colloids·Chunhua ZhaoDejun Sun

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