Add time:08/13/2019         Source:sciencedirect.com

In this work a solution calorimetry approach was applied for determination of the sublimation enthalpies of 9 substituted acetanilides. The solution enthalpies of acetanilide and 9 its derivatives in acetonitrile were measured and solvation enthalpies were calculated by a group-additivity scheme. Additivity of solvation enthalpy due to influence of the substituent on the acidity of the proton of NHCOCH3-group and OH-group was checked with the use of IR-spectroscopy. The sublimation enthalpies obtained from the solution calorimetry approach were compared to the available literature data. In most cases convergence within the limits of experimental uncertainty was demonstrated.

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