Abstract
Enthalpies of solution of 15-crown-5 (15C5) in the mixtures of water with acetonitrile (AN) or propan-1-ol (PrOH) and benzo-15-crown-5 ether (B15C5) in the PrOH-water mixtures have been measured at 298.15 K. The values of standard enthalpies of solution of 15C5 are negative in the mixtures of water with AN within the whole range of mixture composition and in the mixtures water-PrOH for water content xw>0.1 and those of B15C5 are positive (except the standard enthalpy of B15C5 in pure water) in the system water-PrOH. The results of the calorimetric measurements together with the earlier data for B15C5 in water-acetonitrile mixtures are discussed with regard to the intermolecular interactions that occur in these systems.
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Jóźwiak, M., Piekarski, H. Thermochemical behaviour of crown ethers aqueous organic solvents: Part IV: Propanol and acetonitrile with water mixtures. Journal of Thermal Analysis and Calorimetry 69, 291–300 (2002). https://doi.org/10.1023/A:1019918613889
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DOI: https://doi.org/10.1023/A:1019918613889