Standard molar enthalpies of formation of 5- and 6-nitroindazole

• Type: Article in International Scientific Journal
• Date: 2010

Authors

Manuel A. V. Ribeiro da Silva (Author) FCUP; Joana I. T. A. Cabral (Author) FCUP

Journal

Title: Journal of Thermal Analysis and Calorimetry

Vol. 100 No. 2

Pages: 457-464

ISSN: 1388-6150

Publisher: Springer Nature

Indexing

Scopus

Scientific classification

FOS: Engineering and technology > Chemical engineering

CORDIS: Physical sciences > Chemistry > Physical chemistry

Other information

Abstract (EN): The present work reports the experimental determination of the standard (p = 0.1 MPa) molar enthalpies of formation in the condensed and gaseous phases, at T = 298.15 K, of 5- and 6-nitroindazole. These results were derived from the measurements of the standard molar energies of combustion, using a static bomb calorimeter and from the standard molar enthalpies of sublimation derived by the application of Clausius–Clapeyron to the temperature dependence of the vapour pressures measured by the Knudsen effusion technique. The results are interpreted in terms of the energetic contributions of the nitro groups in the different positions of the aromatic ring.

Language: English

Type (Professor's evaluation): Scientific