Abstract
The standard (po= 0.1 MPa) molar enthalpies of formation ΔfHmo(l or cr) at the temperature T= 298.15 K were determined by means of combustion calorimetry for 2-ethyl-aniline, 2-iso-propyl-aniline, 2-tert-butyl-aniline, 2,6-di-methyl-aniline, 2,6-di-ethyl-aniline, 2,6-di-iso-propyl-aniline, and 2,4,6-tri-tert-butyl-aniline. The standard molar enthalpies of vaporization (or sublimation) of these compounds were obtained from the temperature dependence of the vapor pressure measured in a flow system. The resulting values of ΔfHmo(g) were obtained at the temperature T= 298.15 K and used to derive strain enthalpies of alkyl-anilines. The intra-molecular interactions of the substituents were discussed in terms of deviations ofΔfHmo (g) from group additivity rules. These values provide a further improvement on the group-contribution methodology for estimation of the thermodynamic properties of organic compounds.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
