Enthalpies of solution of methylcalix[4]resorcinarene in non-aqueous solvents as a function of concentration and temperature

► The solution enthalpies of methylcalix[4]resorcinarene in alcohols have been measured. ► The solution enthalpies of methylcalix[4]resorcinarene in alcohols are endothermic. ► Enthalpies of transference are interpreted in terms of proton donor capacity of alcohols. Enthalpies of solution of 2,8,14,...

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Bibliographic Details
Published in:Thermochimica acta 2012-11, Vol.548, p.13-16
Main Authors: Riveros, Diana C., Martínez, Fleming, Vargas, Edgar F.
Format: Article
Language:English
Subjects:
1-propanol
Alcohols
Chemical thermodynamics
Chemistry
Enthalpy
Enthalpy of solution
Ethanol
Ethyl alcohol
Exact sciences and technology
General and physical chemistry
General. Theory
Mathematical analysis
methanol
Methyl alcohol
Methylcalixresorcinarene
Solute–solvent interactions
Solvation
Solvents
temperature
Temperature dependence
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Summary:► The solution enthalpies of methylcalix[4]resorcinarene in alcohols have been measured. ► The solution enthalpies of methylcalix[4]resorcinarene in alcohols are endothermic. ► Enthalpies of transference are interpreted in terms of proton donor capacity of alcohols. Enthalpies of solution of 2,8,14,20-tetramethyl-4,6,10,12,16,18,22,24-octahydroxyresorci[4]arene in methanol, ethanol and propanol as a function of molal concentration at (288.15, 298.15 and 308.15)K were measured calorimetrically. The enthalpies of solvation were estimated. Using propanol as the referent solvent, transfer properties to other alcohols were also calculated. In addition, temperature dependence of the enthalpy of solution at infinite dilution was also obtained. The data were interpreted in terms of solute–solvent interactions.
ISSN:0040-6031
1872-762X
DOI:10.1016/j.tca.2012.08.022