Temperature dependences of the reactions of O(3P) atoms with selected chlorofluoroethenes between 298 and 359 K

MARIANO A. TERUEL, PABLO M. COMETTO, RAÚL A. TACCONE AND SILVIA I. LANE

Wiley

Lugar: NYC-USA; Año: 2005 vol. 37 p. 763 - 763

p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: 200%; TEXT-ALIGN: justify">The rate constants for the gas-phase reactions of ground state oxygen atoms with  CF2=CFCl (1) , (E/Z)-CFCl=CFCl (2), CFCl=CH2 (3) and (E/Z)-CFH=CHCl (4) have been measured directly using a discharge flow tube coupled to a chemiluminescence detection system. The experiments were carried out under pseudo-first-order conditions with  [O(3P)]0 << [ethene]0. The temperature dependences of the reactions were studied for the first time in the range 298-359 K. The proposed Arrhenius expressions ( units of cm3 molecule-1 s-1) were: