COLLISIONAL ENERGY-TRANSFER IN THE 2-CHANNEL DECOMPOSITION OF 1,1,2,2-TETRAFLUOROCYCLOBUTANE AND 1-METHYL-2,2,3,3-TETRAFLUOROCYCLOBUTANE .1. GAS GAS COLLISIONS

Authors
ZALOTAI L TURANYI T BERCES T MARTA F
Citation
L. Zalotai et al., COLLISIONAL ENERGY-TRANSFER IN THE 2-CHANNEL DECOMPOSITION OF 1,1,2,2-TETRAFLUOROCYCLOBUTANE AND 1-METHYL-2,2,3,3-TETRAFLUOROCYCLOBUTANE .1. GAS GAS COLLISIONS, Reaction kinetics and catalysis letters, 51(2), 1993, pp. 401-408
Citations number
10
Categorie Soggetti
Chemistry Physical
Journal title
Reaction kinetics and catalysis letters → ACNP
ISSN journal
01331736
Volume
51
Issue
2
Year of publication
1993
Pages
401 - 408
Database
ISI
SICI code
0133-1736(1993)51:2<401:CEIT2D>2.0.ZU;2-F
Abstract
The two-channel thermal decomposition of 1,1,2,2-tetrafluorocyclobutan e (TFCB) and 1-methyl-2,2,3,3-tetrafluorocyclobutane (MTFCB) have been studied in the temperature range of 730-805 K at pressures varied fro m 1.1 Pa up to 4.6 kPa. In the pressure independent range, Arrhenius e xpressions were obtained for TFCB decomposition into 2 CH2CF2 (k1) and C2H4 + C2F4 (k2), respectively. The same kinetic equations were deter mined for the decomposition of MTFCB into C3H4F2 + C2H2F2(k3) and C3H6 + C2F4 (k4). From the study of the pressure dependence of the homogen eous decomposition rates, the average downward energy transfer values of 1800 +/- 200 cm-1 and 1600 +/- 200 m-1 were obtained for the TFCB a nd MTFCB molecules, respectively.