Influence of the functional groups -NH2, -OCH3, and -OH on the thermochemistry of indanes

• Type: Article in International Scientific Journal
• Date: 2019

Authors

Silva, ALR (Author) FCUP; Gama, PMV (Author) Other; Maria D M C R Ribeiro da Silva (Author) FCUP

Journal

Title: Canadian Journal of Chemistry

Vol. 97

Pages: 788-794

ISSN: 0008-4042

Publisher: NRC Research Press

Indexing

ISI Web of Knowledge - 2 Citations

Scopus - 2 Citations

Other information

Authenticus ID: P-00R-742

DOI: 10.1139/cjc-2019-0257

Abstract (EN): This work is a contribution to the thermochemical characterization of bicyclic hydrocarbons, reporting the study of six indane derivatives: 4-aminoindane, 5-aminoindane, 5-methoxyindane, 1-indanol, 2-indanol, and 5-indanol. The combustion calorimetry technique was used to measure the massic energy of combustion of each compound in the condensed state, which has been used to derive the corresponding standard (p degrees = 0.1 MPa) molar enthalpy of formation, at 298.15 K. The standard molar enthalpies of sublimation or vaporization of the compounds were determined by high-temperature Calvet microcalorimetry. For each indane derivative, the results obtained for those two properties, allowed to derive the respective value of standard molar enthalpy of formation, in the gaseous phase. Additionally, a theoretical study at the G3(MP2)//B3LYP level has been carried out, and the calculated enthalpies of formation have been compared with the experimental values. The values of the enthalpy of formation, in the gaseous phase, were analysed in terms of correlations between the structural (different substituents in the indane core) and energetics characteristics.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 7