Complexation thermodynamics of selenacrown ether: Origin of high silver(I) selectivity of 1,5,14,18-tetraselena-8,11,21,24- tetraoxacyclohexacosane

Yu Liu, Shu Ping Dong, Yoshihisa Inoue, Takehiko Wada

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

The thermodynamic parameters and relative cation selectivity for complexation of some alkali and heavy metal cations with 1,5,14,18- tetraselena-8,11,21,24-tetraoxacyclohexacosane (selena-26-crown-8) are investigated for the first time by titration calorimetry in water- acetonitrile (1:24v/v) at 25°C to show the contrasting complexation thermodynamic behaviour between Ag+ and alkali or TI+ and a very high Ag+ selectivity, originating from the exclusive contribution of the enthalpy term probably owing to the partially covalent interaction between Ag+ and Se donor.

Original languageEnglish
Pages (from-to)284-285
Number of pages2
JournalJournal of Chemical Research - Part S
Issue number4
DOIs
Publication statusPublished - 1999 Apr
Externally publishedYes

ASJC Scopus subject areas

  • Chemistry(all)

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