Complexation of alkali metal cations by lower rim amide derivative of calix[4]arene (CROSBI ID 549521)
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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 skupu
Summer School of Calorimetry, Calorimetry and Thermal Methods in Catalysis
poster
29.06.2008-04.07.2008
Lyon, Francuska