Flash photolysis resonance fluorescence investigation of the gas-phase reactions of hydroxyl radicals with cyclic ethers

1990 ◽  
Vol 94 (5) ◽  
pp. 1881-1883 ◽  
Author(s):  
Philippe. Dagaut ◽  
Renzhang. Liu ◽  
Timothy J. Wallington ◽  
Michael J. Kurylo
Keyword(s):  
Gas Phase ◽  
Hydroxyl Radicals ◽  
Flash Photolysis ◽  
Cyclic Ethers ◽  
Resonance Fluorescence ◽  
Gas Phase Reactions

Direct Kinetic Study of Reactions of Hydroxyl Radicals with Alkyl Formates

2004 ◽  
Vol 218 (4) ◽  
pp. 479-492 ◽  
Author(s):  
István Szilágyi ◽  
Sándor Dóbé ◽  
Tibor Bérces ◽  
Ferenc Márta ◽  
Béla Viskolcz
Keyword(s):  
Gas Phase ◽  
Hydroxyl Radicals ◽  
Room Temperature ◽  
Methyl Formate ◽  
Ethyl Formate ◽  
Rate Coefficients ◽  
Resonance Fluorescence ◽  
Gas Phase Reactions ◽  
Temperature Rate ◽  
Fast Flow

AbstractRate coefficients were determined for the gas phase reactions of hydroxyl radicals with a series of alkyl formats. Experiments were carried out using the isothermal fast flow method coupled with resonance fluorescence detection. The obtained room temperature rate coefficients are (in 10−13cm3 molecule−1s−1 units): 1.83 ± 0.33 (methyl formate), 9.65 ± 0.43 (ethyl formate), 18.73 ± 0.83 (isopropyl formate), 6.77 ± 0.38 (tert-butyl formate) and 1.62 ± 0.13 (methyl chloroformate). These results are compared with the literature data. In addition estimations are made for the partial reactivities of the formate group and for the hydrocarbon groups adjacent to HC(O)O. Moreover, it has been found that the partial reactivity of the HC(O)O group (in reactions of OH with formates) is two orders of magnitude smaller than that of the HC(O) group (in reactions of OH with aldehydes). This has been explained using the results of ab initio calculations at the G3MP2//MP2(full)/6-31G(d) level of theory.

The gas phase reactions of hydroxyl radicals with a series of aliphatic ethers over the temperature range 240-440 K

1988 ◽  
Vol 20 (1) ◽  
pp. 41-49 ◽  
Author(s):  
Timothy J. Wallington ◽  
Renzhang Liu ◽  
Philippe Dagaut ◽  
Michael J. Kurylo
Keyword(s):  
Gas Phase ◽  
Hydroxyl Radicals ◽  
Gas Phase Reactions ◽  
Temperature Range ◽  
Aliphatic Ethers
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