Thermochemical study of four isomers of dichloroanisole

• Type: Article in International Scientific Journal
• Date: 2008

Authors

da Silva, MAVR (Author) FCUP; Ana I M C L Lobo Ferreira (Author) FCUP

Journal

Title: Journal of Chemical Thermodynamics

Vol. 40

Pages: 924-930

ISSN: 0021-9614

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 6 Citations

Scopus - 5 Citations

Other information

Authenticus ID: P-003-Z05

DOI: 10.1016/j.jct.2008.02.003

Abstract (EN): The present work reports the values of the gaseous standard (p degrees = 0.1 MPa) molar enthalpies of formation of four isomers of dichloroanisole: 2,3-, 2,4-, 2,6-, and 3,5-dichloroanisole, at T=298.15 K. For all compounds, those values were derived from measurements of the standard molar energies of combustion in the condensed phase, using a rotating bomb combustion calorimeter, together with measurements of the standard molar enthalpies of sublimation or vaporization, measured by high temperature Calvet microcalorimetry. Moreover, the enthalpies and the temperatures of fusion for the crystalline isomers of dichloroanisoles were measured by differential scanning calorimetry. [GRAPHICS] The derived standard molar enthalpies of formation in the gaseous phase, at T=298.15 K, for the title compounds were compared with the same parameters estimated by the Cox scheme and interpreted in terms of molecular structure.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 7