MECHANISM OF THERMAL DECOMPOSITION OF 2-FURYL RADICALстатья
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Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 27 марта 2017 г.
Автор:
Poskrebyshev G.A.
Журнал:
Chemical Physics
Том:
465
Год издания:
2016
Издательство:
Elsevier BV
Местоположение издательства:
Netherlands
Первая страница:
52
Последняя страница:
64
DOI:
10.1016/j.chemphys.2015.12.002
Аннотация:
Mechanism of thermal decomposition of 2-furyl radical is studied using UB3LYP, UBHandHLYP and UMP2/6-311++G(d, p) approaches. Thermodynamic properties of considered intermediates and products of 2-furyl radical decomposition are calculated. Two the most kinetically favorable channels of 2-furyl decomposition are found: cis-cis-5-C(H)=C(H)C(H)CO (P1) → C2H2+CHCO (1) and cis-trans-5-C(H)=C(H)(H)C=CO (P2) → CO + C3H3(2), where P1 and P2 are the intermediate products of 2-furyl radical decomposition C4H3O → P1 虠P2 虠trans-trans-5-C(H)=(H)CC(H)CO (P3). The values of equilibrium (Kp) and high pressure limits rate (k∞) constants of the reactions considered in the present work are calculated. The important values of k∞ = 2.85×1013T298.151.05e-138.7RT and =2.7×1012T298.151.05e-175.7RTs-1 are estimated, respectively, for reactions P1 → C2H2+CHCO and P2 → H2C = CC(H)CO (P4) → CO + C3H3. The values of Kp = 3.7×105T298.154.14e-11.9RT and 3.35T298.15-0.201e-1.34RT, respectively, for reactions C4H3O 虠P1 and P1 虠P2 are determined. In addition, the importance of formation of most thermodynamically favorable intermediate P3 is reported and the value of Kp = 3.45×10-2T298.150.317e4.5RT for reaction P2 虠P3 is calculated. © 2015 Elsevier B.V. All rights reserved.
Добавил в систему:
Поскрёбышев Григорий Анатольевич