Add time:07/14/2019         Source:sciencedirect.com

In this work a method of estimation of sublimation enthalpies of benzoic acid derivatives and aromatic or heteroaromatic carboxylic acids was developed. The method is based on calculation of sublimation enthalpy from fusion enthalpy of studied compound and of benzoic acid at corresponding melting temperatures and sublimation enthalpy of benzoic acid at 298.15 K.Calculated sublimation enthalpy values of benzoic acid derivatives containing CH3-, CH3O-, F-, Cl-, Br-, I-, NO2- and other substituents, 1- and 2-naphthoic acids and heteroaromatic carboxylic acids (38 compounds in total) were compared with literature data (at 298.15 K) obtained by conventional methods. In most cases, divergence does not exceed 2–3%.

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