caa a22 4500 463188160 CHVBK 20180406164900.0 cr unu---uuuuu 170326e20070401xx s 000 0 eng 10.1007/s10973-006-8326-3 doi (NATIONALLICENCE)springer-10.1007/s10973-006-8326-3 Thermochemicalstudy of 2- and 3-alkyl substituted thiophenes [Elektronische Daten] Energetic-structural correlations [M. Ribeiro da Silva, Ana Santos] The standard (p 0=0.1 MPa) molar enthalpies of formation, in the condensed phase, of nine linear-alkyl substituted thiophenes, six in position 2- and three in position 3-, at T=298.15 K, were derived from the standard massic energies of combustion, in oxygen, to yield CO2(g) and H2SO4·115H2O(aq), measured by rotating-bomb combustion calorimetry. The standard molar enthalpies of vaporization of these compounds were measured by high temperature Calvet Microcalorimetry, so their standard molar enthalpies of formation, in the gaseous phase, were derived. The results are discussed in terms of structural contributions to the energetics of the alkyl-substituted thiophenes, and empirical correlations are suggested for the estimation of the standard molar enthalpies of formation, at T=298.15 K, for 2- and 3-alkyl-substituted thiophenes, both in the condensed and in the gaseous phases. Springer-Verlag, 2007 2-alkylthiophenes nationallicence 3-alkylthiophenes nationallicence Calvet microcalorimetry nationallicence combustion calorimetry nationallicence enthalpy of combustion nationallicence enthalpy of formation nationallicence enthalpy of vaporization nationallicence thiophene nationallicence Ribeiro da Silva M. Centro de Investigação em Química, Department of Chemistry, Faculty of Science, University of Porto, Rua do Campo Alegre 687, 4169-007, Porto, Portugal aut Santos Ana Centro de Investigação em Química, Department of Chemistry, Faculty of Science, University of Porto, Rua do Campo Alegre 687, 4169-007, Porto, Portugal aut Journal of Thermal Analysis and Calorimetry Kluwer Academic Publishers 88/1(2007-04-01), 7-17 1388-6150 88:1<7 2007 88 10973 https://doi.org/10.1007/s10973-006-8326-3 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10973-006-8326-3 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Ribeiro da Silva M. Centro de Investigação em Química, Department of Chemistry, Faculty of Science, University of Porto, Rua do Campo Alegre 687, 4169-007, Porto, Portugal aut NATIONALLICENCE 700 1- Santos Ana Centro de Investigação em Química, Department of Chemistry, Faculty of Science, University of Porto, Rua do Campo Alegre 687, 4169-007, Porto, Portugal aut NATIONALLICENCE 773 0- Journal of Thermal Analysis and Calorimetry Kluwer Academic Publishers 88/1(2007-04-01), 7-17 1388-6150 88:1<7 2007 88 10973 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer