caa a22 4500 378913638 CHVBK 20180305123547.0 cr unu---uuuuu 161128e20040401xx s 000 0 eng 10.1524/zpch.218.4.469.29200 doi (NATIONALLICENCE)gruyter-10.1524/zpch.218.4.469.29200 A Kinetic Study of the Reaction between the 2-Ċ3H7 Radical and i-C4H8: Enthalpy of Formation of the (CH3)2CHCH2Ċ(CH3)2 Radical [Elektronische Daten] [László Seres, Martin Dinse, Miklós Görgényi] The reversible addition reaction 2-Ċ3H7 + i-C4H8 ⇔ (CH3)2CHCH2Ċ(CH3)2 was studied in the temperature range 491-543K by product analysis in experiments in which 2-Ċ3H7 radicals were generated by the thermal decomposition of azoisopropane. The enthalpy of formation of the radical (CH3)2CHCH2Ċ(CH3)2 was determined, the value obtained being ΔfH° = -21.8 ± 5.2kJ mol-1. From this result, the following group value was deduced: ΔfH°[Ċ-(C)3] = 177.1kJ mol-1. From the latter, ΔfH°(t-Ċ4H9) = 51.6kJ mol-1 was estimated. The rate constant of self-combination of the radical (CH3)2CHCH2Ċ(CH3)2 was determined for the first time: log(k12/(dm3mol-1s-1)) = 7.3. © 2004 Oldenbourg Wissenschaftsverlag GmbH Thermodynamics & statistical physics nationallicence Laboratory techniques, experiments nationallicence Physical chemistry nationallicence Seres László aut Dinse Martin aut Görgényi Miklós aut Zeitschrift für Physikalische Chemie/International journal of research in physical chemistry and chemical physics Oldenbourg Wissenschaftsverlag GmbH 218/4/2004(2004-04-01), 469-478 0942-9352 218:4/2004<469 2004 218 zpch https://doi.org/10.1524/zpch.218.4.469.29200 text/html Onlinezugriff via DOI 1 research article jats NATIONALLICENCE 856 40 https://doi.org/10.1524/zpch.218.4.469.29200 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Seres László aut NATIONALLICENCE 700 1- Dinse Martin aut NATIONALLICENCE 700 1- Görgényi Miklós aut NATIONALLICENCE 773 0- Zeitschrift für Physikalische Chemie/International journal of research in physical chemistry and chemical physics Oldenbourg Wissenschaftsverlag GmbH 218/4/2004(2004-04-01), 469-478 0942-9352 218:4/2004<469 2004 218 zpch CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-gruyter