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Complexation of alkali metal cations by lower rim amide derivative of calix[4]arene (CROSBI ID 549521)

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Horvat, Gordan ; Frkanec, Leo ; Tomišić, Vladislav Complexation of alkali metal cations by lower rim amide derivative of calix[4]arene // Summer School of Calorimetry, Calorimetry and Thermal Methods in Catalysis Lyon, Francuska, 29.06.2008-04.07.2008

Podaci o odgovornosti

Horvat, Gordan ; Frkanec, Leo ; Tomišić, Vladislav

engleski

Complexation of alkali metal cations by lower rim amide derivative of calix[4]arene

Complexation of alkali metal cations with 5, 11, 17, 23-tetra(tert-butil)-25, 26, 27, 28-tetra(N-hexylcarbamoylmethoxy) calix[4]arene (L) in acetonitrile was studied by means of spectrophotometric, conductometric, potentiometric and microcalorimetric titrations. The stability constants of the NaL+ and KL+ complexes were determined. The values obtained by different methods were in very good agreement. Calorimetric titrations provided information about the enthalpies and entropies of complexation reactions. The investigated reactions were enthalpy driven.

calixarene ; complexation ; alkali metal cations ; microcalorimetry ; thermodynamics

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Podaci o prilogu

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Podaci o skupu

Summer School of Calorimetry, Calorimetry and Thermal Methods in Catalysis

poster

29.06.2008-04.07.2008

Lyon, Francuska

Povezanost rada

Kemija