Thermochemistry of organic azides revisited

• Tipo: Artigo em Revista Científica Internacional
• Data: 2014

Autores

Vladimir N Emel'yanenko (Autor) Outra; Manuel Algarra (Autor) Outra; Joaquim C G E Esteves da Silva (Autor) FCUP; Jesus Hierrezuelo (Autor) Outra; Juan M Lopez Romero (Autor) Outra; Sergey P Verevkin (Autor) Outra

Revista

Título: Thermochimica Acta

Vol. 597

Páginas: 78-84

ISSN: 0040-6031

Editora: Elsevier

Indexação

ISI Web of Knowledge - 11 Citações

Scopus - 12 Citações

Classificação Científica

FOS: Ciências exactas e naturais > Química

Outras Informações

ID Authenticus: P-009-X90

DOI: 10.1016/j.tca.2014.10.015

Abstract (EN): Highly pure samples of 4-nitro-phenyl azide, 1-octyl azide and 1 decyl-azide were prepared for thermochemical studies. Vapour pressures over the solid and the liquid sample of 4-nitro-phenyl azide have been determined by the transpiration method. The molar enthalpies of vaporization/sublimation for this compound were derived from the temperature dependencies of vapour pressures. The molar enthalpy of fusion of 4-nitro-phenyl azide was measured by DSC. The measured data set for 4-nitrophenyl azide was successfully checked for internal consistency. Molar enthalpies of vaporization of 1-octyl azide and 1 decyl-azide were measured by transpiration. The molar enthalpies of formation of the liquid 1-octyl azide and 1 decyl-azides were derived from the combustion calorimetry. New experimental results for these organic azides have been used to derive their molar enthalpies of formation in the gas state and for comparison with results from quantum-chemical method G4.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 7