Thermochemical study of some chloro and bromo alkyl substituted phthalimides: Structural-energetic correlations

• Tipo: Artigo em Revista Científica Internacional
• Data: 2007

Autores

Manuel A V R Ribeiro da Silva (Autor) FCUP; Claudia P F Santos (Autor) Outra; Manuel J S Monte (Autor) FCUP; Carlos A D Sousa (Autor) Outra

Revista

Título: Journal of Chemical Thermodynamics

Vol. 39

Páginas: 1363-1371

ISSN: 0021-9614

Editora: Elsevier

Indexação

ISI Web of Knowledge - 4 Citações

Scopus - 5 Citações

Classificação Científica

FOS: Ciências da engenharia e tecnologias > Engenharia mecânica

Outras Informações

ID Authenticus: P-004-76T

DOI: 10.1016/j.jct.2007.03.009

Abstract (EN): The standard (p degrees = 0.1 MPa) massic energies of combustion, Delta(c)u degrees for crystalline N-chloromethylphthalimide, N-(2-chloroethyl)phthalimide, N-(2-bromoethyl)phthalimide, and N-(3-bromopropyl)phthalimide were determined, at the temperature 298.15 K, using a rotating-bomb combustion calorimeter. The standard molar enthalpies of sublimation, Delta H-g(cr)m degrees at T = 298.15 K were determined for all compounds by Calvet microcalorimetry and for N-chloromethylphthalimide also derived from the variation with the temperature of its vapour pressures measured by the Knudsen effusion technique. The results obtained were as follows: [GRAPHICS] These values were used to derive the standard molar enthalpies of formation of the compounds in their crystalline and gaseous phases, respectively. The derived standard molar enthalpies of formation, in the gaseous state, are analyzed in terms of enthalpic increments and interpreted in terms of molecular structure.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 9